My video started buffering and I had to rewind to make sure it wasn't a joke -_- Can't trust Linus's editors
@ZecVal6 жыл бұрын
Jeremy Meadows hehe they would do that 😄
@aherprasad6 жыл бұрын
They're Brad#2
@li_tsz_fung6 жыл бұрын
So disappointed by that red buffering bar
@jjt1714 жыл бұрын
my video started buffering as soon as he said buffering and thought it was a joke and sat there for half a minute before realizing my video is actually buffering
@ENDRMiK4 жыл бұрын
Same
@TachyKusanagi6 жыл бұрын
I worked for a German cable company (using the EuroDOCSIS standard) and recall that multiple channels were able to use the same frequency. Based on modulation they would seperate the TV-signals from one another. Even multiple HD-signals were able to sit on one frequency (usually 4) without much problem.
@FD404OG4 жыл бұрын
Pfp source?
@osurgac4 жыл бұрын
Actually mine does when there is wind and rain
@dakshmalhotra22234 жыл бұрын
Do you have a dish installed in your backyard or on your roof? Cuz i have one and it does the same when its rainy.
@Zodiac.4 жыл бұрын
@@dakshmalhotra2223 That isnt cable. Thats satellite
@8-bitarcadebrawlergaming1764 жыл бұрын
Well i do have Cable internet & TV And when it's raining and wind Cable Never buffering either the Cable in Belgium it's more Powerful and installed on a Power line from the outside and wind powerful and rain Cable in Belgium Doesn't buffer either LOL
@Ok-ls7ri4 жыл бұрын
Maybe you have satellite
@chrisfamos3 жыл бұрын
Satellite is dying fast. 5G will takeover.
@bibasik76 жыл бұрын
For the same reason that your electricity doesn't buffer.
@saltysoysauce9545 жыл бұрын
Except capacitors! :p
@wonshitong62855 жыл бұрын
What about blackouts? Aren't they considered as electricity buffers?
@mwbgaming285 жыл бұрын
It does when some dumbass crashes his car into a power pole
@earumamaadu4 жыл бұрын
Actually electricity does buffer during peak hours.
@gynaecide43824 жыл бұрын
And why doesn't electricity buffer?
@M4ZyM0Ny6 жыл бұрын
Cable TV... Shows a picture of Sky TV.
@star9ine2765 жыл бұрын
i dont get it
@sudarshan39654 жыл бұрын
🤣
@dangreenberg47523 жыл бұрын
All us Brits know that sky is hosted
@dangreenberg47523 жыл бұрын
Goated*
@writer_novice.3 жыл бұрын
@@dangreenberg4752 I'm a Brit.
@KylesDigitalLab6 жыл бұрын
Better Question: Why Doesn't Satellite TV Buffer?
@brandenlucero6 жыл бұрын
it does at times, especially during a power outage.
@thecarterkent65716 жыл бұрын
According to my friend his satellite buffers everytime a cloud is above his house
@KylesDigitalLab6 жыл бұрын
Satellite TV only buffers for me when there's a fucking monster storm outside. I don't even watch Satellite alot anymore, KZbin + Netflix + Plex + DVD/Blu-ray discs is all I need for entertainment.
@brandenlucero6 жыл бұрын
i gave up on TV in general as well. KZbin as basically became my primary source of entertainment for now, regardless of the stupid hoops i have to go through to watch something that isn't repeated. Netflix once in a while, VUDU occasionally because i loaded dozens of digital copies from Blu-rays/DVDs to there.
@KylesDigitalLab6 жыл бұрын
I agree, cable/satellite is overpriced. Netflix is only like $12 a month, I have my own media server (Plex), and DVDs/Blu-rays.
@VincentMartens936 жыл бұрын
Digital TV channels on coax does not have one frequency per channel, they are divided in transport streams of 8MHz wide with usually QAM256modulation wich is about 50Mbit wich supports about ~5 digital channels. The reason analog dissapeared is mainly because it uses up too much room on the cable and nobody ever uses it. (This is purely based on my experience as field tech. Netherlands) Also, we have 500mbit on coax wich uses 20 channels, and next year DOCSIS 3.1 is enabled wich uses frequencies of up to 1200Mhz.
@johnlow38946 жыл бұрын
we've got 3.1 here already and it's modulated at 1024QAM. oh fuck yeah! 10Gb here we come baby!
@Thomas_Valentino6 жыл бұрын
I am a tech as well and I'm running 3.1 at gig speeds it's amazing but will get better when we accomplish node to 0 configuration
@jamess17876 жыл бұрын
John Low Qam4096 with 5 ofdma downstream is 9Gbps... Not Qam1024. Consumer hardware only supports a maximum of 2 ofdma downstream channels.
@jamess17876 жыл бұрын
If you're in Europe, yes. North America is 6Mhz.
@RaymondHng6 жыл бұрын
I'm aware of the limitations with Cat5, Cat6, and RS-232 cabling. How many frequencies or transport streams or channels or bits or whatever-you-call-them can you push through a coaxial cable?
@quinton16616 жыл бұрын
Correction: digital channels typically have between 2 and 20 channels, depending on SD or HD. Each channel can support approximately 38 Mbps, divided up among all stations.
@dtvfan246 жыл бұрын
quick note that 1:05 the UK Sky Satellite guide is shown behind Linus. its NOT cable
@mscheese0004 жыл бұрын
I was just excited that it had Babylon 5 in the programming.
@MaxFPSGamer3 жыл бұрын
Yeah I just commented that. Maybe though it’s because they’re unfamiliar with Sky as it’s not a thing in Canada.
@manw3bttcks3 жыл бұрын
I've noticed that amazon tv has this initial low res when you start a new stream, then it gets better in about 15 seconds. I suspect they hide buffering by running at low res for awhile
@TurpInTexas6 жыл бұрын
True, both signals are digital, but one is packed switched (IP as in Internet Protocol) whereas all the little packets of data are broken up and reassembled at the destination, and the other is circuit switched, meaning it is essentially a continuous stream of data on its own dedicated circuit. Also, packet switched is susceptible to net-splits, so even if the end user has piles of bandwidth, the re-syncing that has to happen once the network path is switched from one major path to another, can also result in momentary disruption. Dedicated circuit switched streams are just that, a circuit dedicated to that stream, so users don't have net-split issues. I know some of my terminology is somewhat confusing, packet switched, and circuit switched come from the old days of telephone.
@sleepysteev27352 жыл бұрын
Some actual pro-cable arguments: -dedicated channels for specific genres and topics -all programming is synchronized across time zones (great for live events) -no risk of signal interference -high speed internet is not required -no depletion of bandwidth -live events can be broadcast in HD at 60fps without any buffering -most subscriptions include DVR service and on-demand/streaming access through the cable box And for for premium channels: -ad-free -uncensored -price model is based on individual channels instead of packages which can lead to lower subscription fees in some cases -allows for pay-per-view access And now some anti-streaming arguments: -most high-quality content is fragmented across different platforms which all require different payment plans, even if the content itself is from the same studio, creator, or TV series -available content is often inconsistent due to changes in licensing rights -there is virtually no quality control -any free services have ads (which are often very haphazardly placed throughout the show or movie) -high speed internet is required -buffering can be a problem -signal interference can be a problem -access to live events costs extra -higher quality picture and faster frame rates eat up TONS of bandwidth and may not even be possible depending on where you live
@JamieVegas3 ай бұрын
-no risk of signal interference [same as Internet, which might arrive via cable connection] .. -live events can be broadcast in HD at 60fps without any buffering [buffering isn't actually needed for Internet video either] -high speed internet is not required [cable is just a high speed packetized digital data connection... nothing different] -no depletion of bandwidth [ehhh... well... your cable connection is literally nothing more than a 3.1 Gbps data connection, with a nice 90% bandwidth chunk being missing and dedicated to 250+ video streams that you aren't watching at any given moment]
@chrisklugh6 жыл бұрын
HAHAHA! At 21 seconds in, my video stopped, and started to buffer. I though it was your video/editing... As rare as it is to be buffering these days (for me), the timing was impeccable! :)
@shinevisionsv6 жыл бұрын
3:55 thats a soyuz, not a satellite..... right?
@2406ab6 жыл бұрын
technically a soyuz is a satellite when its in orbit
@shinevisionsv6 жыл бұрын
what i mean with "Satellite" is a thing that relays and or transmits TV data to customers.
@polyjohn34256 жыл бұрын
You're right that it's not a telecom satellite, but I'm pretty sure that's a render concept for the Progress spacecraft, and unmanned cargo ship/satellite based on the Soyuz model.
@Parrot48596 жыл бұрын
That is the result of the editor just quickly googling "satellite" instead of "telecom satellite". Quantity over quality yo. It's the same with the diagram at 3:09 which just came straight from the Wikipedia page "Cable television"...
@shinevisionsv6 жыл бұрын
Haha, yeah. noticed that one too. to be fair, i thought they always used those stock photo sites, kinda surprised they just use... google :P
@honzajuricka26126 жыл бұрын
Says everyone sees the same stream, shows TVs watching the same channel seeing something else than the other. Great job Linus
@tylerstuart97995 жыл бұрын
great video. good information, i am a cable technician, and this is nearly spot on. All of the information is broad, albeit this is tech quickie. the signals that are particularly different is that your internet (cable modem) runs on DOCSIS. which can be a mixture of set downstream channels, and usually, 4 upstream channels. Usually, cable companies only cover docsis 3.0 and 3.1. 3.1 is just more channels to bond to so it is faster. Your cable box, like Linus said, is covered by a bunch of separate downstream signals usually referred to as the DS spectrum, and contains hundreds of frequencies that are always live. good video Linus
@markajoseph19806 жыл бұрын
Video unwatchable keeps buffering
@kepler6666 жыл бұрын
get the privateinternetaccess
@markajoseph19806 жыл бұрын
Audrius Nezinau the subtleties of humour is lost I see
@kepler6666 жыл бұрын
you should work for linus
@Major_Mason6 жыл бұрын
Excellent video! I will add that a piece of software is used on a server called a "Play Through Scheduler" which maps out what shows play at what specific times.
@TechTonor6 жыл бұрын
Hi Linus. The fact that only a single channel is on a frequency, isn't quiet right. Digital compressions allows 7-8 SD/ 2-3 HD channels in a single QAM. You're thinking about the old analog signal - and that's years back now... Another fact is that nowaways you can even esperate the downstreams and upstreams on COAX Internet (before and after the tv-frequencies), allowing us to handle even more seed on a single cable. Here in Denmark, YouSee are currencly upgrading the main-network, allowing us to reach speeds up to more than 1000Mbps on COAX :-) TL;DR - Analog tv = 1 frequency | Digital tv - Multiple channels
@johnlow38946 жыл бұрын
that depends on your modulation. we've been avg'ing 15 HD chs per QAM for over a decade
@TechTonor6 жыл бұрын
John Low Sure! You're totally right :-) My input was based on our modulation-standard. I missed that fact.
@jeffrydemeyer54336 жыл бұрын
QAM would make for an interesting techquicky
@agent007jr6 жыл бұрын
They have both 720 and 1080 channels, and a single 2160 at the moment.
@michaeldickens11016 жыл бұрын
He also didn’t mention SDV, which is basically a single physical channel that displays variable logical channels (depending on what channel you tune to)
@WiiHaveDowns6 жыл бұрын
Additionally, TV signal tends to just jump to the next image as its a "dumb" signal. The TV (traditionally) can't tell the input to wait until the buffer fills before continuing which is where you get choppy signals from during a storm. The pausing, fast forwarding, and rewinding is through a cache on board your cable box and not through interaction with the input.
@arjunarunkumar30976 жыл бұрын
Well I am going to watch this video... ...just as soon as it stops buffering
@shadowmist84856 жыл бұрын
Stops or finishes?
@amendorato6 жыл бұрын
2:18 - Actually each frequency can carry more than one (set top box) channel. They're not dedicated for each channel, unless you use that amount of data, of course. If isn't HD channel it's possible to put something like 8 channels on the same freq. Dedicated frequencies for each channel, like you said, is for analog TV (one freq for image, another for color and another for audio)
@RobertDunn3102 жыл бұрын
I agree, I read this somewhere else and when Linus mentioned it in his video, it set off my BS alarm.
@DJPsyq6 жыл бұрын
RIP Techquickie Intro
@TeamTeddy6666 жыл бұрын
My cable box includes netflix. I was guessing it was using internet for netflix until i unplugged my modem and it still worked. So, does this mean that the "coaxial" cable is delivering the internet that netflix in the cable box uses?
@IncoherentOrange6 жыл бұрын
Yes, the cable box has its own modem. It gets an IP address from the WAN like an internet modem does, but it doesn't route.
@daniel_960_6 жыл бұрын
There are providers who provide internet through tvcables too.
@misternewwyy26556 жыл бұрын
Yes, and no. Some cable boxes have built in modems for this purpose, while some only have wireless cards and require you to be an internet customer to use services like netflix or youtube.
@sabretechv26 жыл бұрын
You have spectrum don’t you
@TeamTeddy6666 жыл бұрын
No, I live in canada and have Shaw. Upload speeds are shit, but 150 down is good for me.
@GoodKyn5 жыл бұрын
I love it when questions I never thought of gets answered
@doveshouse6 жыл бұрын
This is just such a great video. This is one of those questions you ask yourself and you think nobody else would be asking themselves this question... And then you find a video like this which is a great explanation and also notice there are tons of comments!
@simpsons7036 жыл бұрын
Sky (the image used to show cable TV at 1:05) is a satellite based TV service in the UK. Not cable.
@asaaii38726 жыл бұрын
simpsons703 you can get cable
@simpsons7036 жыл бұрын
Angela Ziegler that's not my point. I'm pointing out that the image used in the background was not cable TV. Sky is mainly a satellite TV company. Not a cable TV company.
@simpsons7036 жыл бұрын
Angela Ziegler also in the UK they don't offer it via cable themselves but virgin media offer sky channels via cable.
@asaaii38726 жыл бұрын
Being mainly a Satellite TV company ≠ not being cable tv. I still get your point.
@Krytern6 жыл бұрын
That specific picture was for satellite. Being able to get cable is completely irrelevant for this comment thread.
@itskdog6 жыл бұрын
Video on Cable TV, at 1:07, uses Sky (a SATELLITE service in the UK) - Well done on the research everyone at LMG!
@techphil25736 жыл бұрын
Error @ 1:04 - The TV Guide in the background is the UK Sky TV Guide. Sky is a Satellite TV provider, not cable.
@asaaii38726 жыл бұрын
TechPhil you can get cable at least in Germany
@techphil25736 жыл бұрын
Angela Ziegler In the UK, sky provides Satellite TV. Cable options are available through companies such as Virgin Media, but Sky (which was shown in the video) does Satellite.
@Krytern6 жыл бұрын
Angels Ziegler - That TV Guide is the UK one, not German so them providing cable in Germany is irrelevant.
@falconmm16146 жыл бұрын
Sure it may be an error but what difference does it make?
@findingnemowebhaumea4 ай бұрын
@@techphil2573 I think this isn't applicable anymore. AFAIK, Sky uses internet lines now. But, yes, originally they used satellites.
@GGO_Tube6 жыл бұрын
had this question on my head for years , never searched for an answer ,thanks Linus
@SoumyadeepBanerjee0076 жыл бұрын
Satellite: *There's an eclipse anyone got some double a's* ?? Oh Linus you are funny man
@danishdezembro11166 жыл бұрын
Soumyadeep Banerjee you are even funny
@billkeithchannel6 жыл бұрын
tinyurl.com/BalloonSatellites tinyurl.com/FElinks
@BDUDE6 жыл бұрын
Now I got the joke.it says A*s.
@bikerchrisukk6 жыл бұрын
The video buffered as I watched, thought it was part of the video! Great video, interesting stuff.
@johanjoseph48026 жыл бұрын
2:27 when Linus transforms to Seinfeld
@losttownstreet34096 жыл бұрын
In some countries you might get a "buffer free" TV-Internet stream as it is transmitted as a broadcast (its expensive). All unicast traffic might get a buffer problem but that is why multicast exists. You might get a sat to Multicast converter (example: eyetv netstream sat). If you are watching TV over cable with you PC you might able to play with the buffer setting (I had put it to 500ms and add some cache). All DVB recivers use a buffer. It's a hugh pain if you try to aim your dish or set up your cable box (if you had to adjust the gain of your cable box). With IPv6 you might get a better multicast performance (as your internet provider and/or router isn't going to filter all multicasts out)
@Hdtjdjbszh6 жыл бұрын
In the UK; Cable TV, with 330 Mbps internet, a phone line, and a mobile (handset included) contract with unlimited everything costs just £56 a month. Which is pretty amazing. I feel sad for the people in the Americas
@AvengedSeven096 жыл бұрын
AceRidesBikes dam it 140 dollars for 50 mbps,phone line, and like 160 channels for my cable bill
@karavidov6 жыл бұрын
Great explanation Linus (and team)! Thanks!
@thomaswillis23826 жыл бұрын
I'm the only one within my group of friends who still watches cable TV.
@Natalie-ez1zc6 жыл бұрын
Thomas Willis it was the opposite for me lol..
@chiller11996 жыл бұрын
Thomas Willis i went from tv to online in 2014 and now i am slowly coming back 😅
@no00ob6 жыл бұрын
Thomas Willis naah only when Im sick or bored
@ponyslavestation29736 жыл бұрын
I quit watching tv since 2010, fuck that expensive shit. PopcornTime on my pc is all i need...
@formerlycringe6 жыл бұрын
Thomas Willis yes you rich boi
@guginskibg79735 жыл бұрын
i love both of ur channels. keep up the great work!
@darknessblades5 жыл бұрын
but how does this work with fiber optic cable?
@blaccpacc6 жыл бұрын
Hey, Linus I love your channel. It’s one of my favorite
@Guldaar6 жыл бұрын
As someone who works in operations for a major ISP in Canada, I give this explanation an 8/10. It won't get you a job, but it's comprehensive yet simple enough for most people to understand.
@MorbusSchmorbus6 жыл бұрын
That is the whole purpose of this channel i guess.
@rayn1ful2 жыл бұрын
you may be able to answer this question then , why when im watching a video on saturday or sunday from about 9am til late afternoon do i get so much buffering during those times ?
@petera80836 жыл бұрын
Love your content. Just a little detail you might want to make a note of. BSkyB (Sky) is a satellite broadcasting company
@_jamesbradley__6 жыл бұрын
great info, thanks!
@IAMCY8ORG6 жыл бұрын
Might also help to note that Cable TV generally uses UDP, so there effectively isn't any Buffering. KZbin uses the TCP Protocol so it needs to buffer to avoid packet loss. Although if it was a live stream, this uses UDP any any data lost during transmission is dropped and forgot about. The same way Skype or Discord transmit data.
@maximilianmorse96976 жыл бұрын
i just got the notification for this video after i finished watching it lol
@csproductions5 жыл бұрын
It's not quite true that each cable channel has its own frequency, usually 4-6 channels will share 1 single frequency, this is called a multiplex and will transmit data streams in Variable Bitrate, so if one channel is just broadcasting a static image, that requires less data so the other channels on the same multiplex can use and bump up there data from another channel.
@danielchild81316 жыл бұрын
I have wondered this for years!
@nikitshetty9316 жыл бұрын
#metoo 😛
@sagarrawal83325 жыл бұрын
I was searching for same couple of months ago.but couldn't find any satisfactory answer. Thanks for uploading this.
@tunagay6 жыл бұрын
You used an image of the Sky guide and the clues kinda in the name, SKY isn't a cable provider it's satellite TV :P
@0xbenedikt6 жыл бұрын
Here in Germany you get Sky via Cable
@Krytern6 жыл бұрын
Benedikt - That TV Guide they showed for Sky is the UK one not German so irrelevant.
@jur4x6 жыл бұрын
I think in Germany you only get few Sky channels from your local cable provider. In UK, Sky is big satellite TV provider, that offers their own channels and some others as well.
@Tedd7556 жыл бұрын
Fun fact: Both satellite and cable television buffers, but only by about less than a second, in order to assemble a few video and audio frames, and for forward error correction. That's part of why changing channels isn't instantaneous.
@chrissxMedia6 жыл бұрын
Next time on Techquickie: "Why doesn't TeamSpeak buffer?"
@RailfanSrikrishna6 жыл бұрын
i had this question for years thanks for the video
@Aditya_V_R6 жыл бұрын
Let's Get TVQuickie
@Kayash_Kino6 жыл бұрын
forgot to like video, came back, liked it, thank you Linus!
@TheMysticMonk06 жыл бұрын
WHO still has cable?
@KylesDigitalLab6 жыл бұрын
I still do, but KZbin, Netflix, Plex, and DVD/Blu-ray discs are all you need for HD entertainment nowdays.
@romano57856 жыл бұрын
I do :(
@KylesDigitalLab6 жыл бұрын
Yes, But I have Blu-ray. I have some TV/stuff on DVD that was never released in Blu-ray or HD. I am aware that DVD is 720x480.
@appa35356 жыл бұрын
like everyone in my area. I don't have netflix because my dad's a cheapass so we pirate tv shows and movies on an apple tv.
@ponyslavestation29736 жыл бұрын
Kyle2000 YT, PopcornTime, YTS is all i need.
@LReBe76 жыл бұрын
2:27 is wrong, individual TV channels are mostly time multiplexed together onto one frequency, because one 6 (or 7 or 8 in Europe) MHz wide channel has more capacity than needed for one HD transport stream. They do however keep that 6/7/8 MHz bandwidth to make spectrum planning easier and also to speed up the decoder's to sweep for available channels. The general idea of this video is right however: cable TV needs no significant buffering, because the traffic is broadcast and the necessary capacity is known in advance.
@vasilepuscasu30484 жыл бұрын
I never asked myself this question, but I still watch the video 😂
@kodeypatterson89736 жыл бұрын
This is a question I never thought but is really interesting. Great job
@metaleggman186 жыл бұрын
Is the only reason I've never had this thought because I'm old enough to remember rabbit ears lol?
@mgkleym6 жыл бұрын
Remember? Over the air tv is popular with cord cutters.
@metaleggman186 жыл бұрын
biohazard 918 when people say "rabbit ears" we're talking about old analog ota antennae that came with a set, whether built in or placed on top. The ones you'd have to fiddle with, or put tin foil on in hopes of getting a "better" signal. I'm sure you could theoretically pick up a signal with that kind of design nowadays, they still make em, but where I live and the general surrounding area, you'll need a fairly powerful outdoor antenna to get a powerful enough signal to be able to receive digital ota channels. Too hilly or too dense or both. Rabbit ears doesn't just generically mean ota. It's a generational colloquiliasm from a time long gone.
@Up8Y6 жыл бұрын
It's not exactly an old thing. Portable TVs still came with them up until the mid-2000s, and you can still buy indoor antennas similar to those- even if they're not too great.
@metaleggman186 жыл бұрын
Up8Y I mean, technically they would have been considered old back in the mid 2000s; hell, portable TVs were considered old back then, it's part of why they died well before phones and tablets became able to play live TV. But more to the point, you guys are being too pedantic about this lol. The whole point is that if you remember tuning in with rabbit ears, you knew, more or less, that you were tuning into specific frequencies to pick up different channels. Analog cable wasn't really dissimilar; it's why we had to tune to a specific channel to use the vcr or a game console. Come on guys, I know it's the internet and all, but this isn't like some sort of strange notion. Can't tell if you guys are just bored or if you're young. 😝
@Up8Y6 жыл бұрын
CRTs and portable TVs really didn't die off until 2008-2011 in my experience. It seems like most people kept them until then, with the whole switch to digital and all.
@penatur5 жыл бұрын
You haven't explained Switched Digital Video (SDV) where cable providers only broadcast a channel as needed in that neighborhood. Which is why there's sometimes a need for a tuning adapter device if you have a TIVO in your home.
@feschber6 жыл бұрын
This is a little like asking why radios don't buffer
@billkeithchannel6 жыл бұрын
That is tomorrow's video.
@feschber6 жыл бұрын
for sure :D I'm waiting
@matthewfard21966 жыл бұрын
Woah, linus is back!
@feynstein10046 жыл бұрын
2:27 Uh why is Linus impersonating Jerry Seinfeld?
@GurjeetSingh-bm6us6 жыл бұрын
Finally answered. Had this question in mind for years.
@MaxWinning6 жыл бұрын
This video has a lot of misinformation but overall his point is fairly accurate. As others have stated digital channels in fact have much more than a single channel per frequency. The number will vary by definition if the channel, encoding type, as well as bitrate configuration. Those configurations directly translate to picture quality, given the same source content. When Linus said there is no server waiting to send you a channel, well, yes there can be. That’s called Switched Digital Video and many MSO’s use this technology to cram low viewed content in much greater numbers per frequency. However once that channel request comes in, it’s still sent out in a similar QAM modulation method as standard linear broadcasts so there is no buffering. OnDemand can be a grey area as many operate somewhat similar to how I just described Switched Digital Video but with the addition of content servers, however some MSO’s utilize IP OnDemand, I suspect that these IP streams are heavily costed on the network to reduce the chances of buffering, and honestly just originating from their own network and content servers greatly reduced the chances, but I don’t have experiencing managing an IP VOD system. Source, I’ve managed these systems for about 15 years.
@TheTotalGinger6 жыл бұрын
The frequency on the coaxial isn't always dedicated. Look into SVD (Switched Digital Video) for more. The US has a lot of this. (Have worked for major Cable companies)
@PrayTellGaming6 жыл бұрын
Haha you almost made me believe - oh no the video is actually buffering :/
@weneverstoodachance69956 жыл бұрын
Cable company also stream certain channels with something called switch digital video not all channels have a static frequency. due to giving customers more internet bandwidth we allocate more of their channel on sdv which is more like streaming on demand but more instantaneous.
@justiny.26536 жыл бұрын
Hold on guys, I'm evolving.
@flareflo3626 жыл бұрын
Justin Y. 2 pokemon?
@flareflo3625 жыл бұрын
@ *enters the room* Anyone up for a conversation about charles darwin and why you should believe in his theory? - yeah sounds about the typical question :)
@CoolDudeClem6 жыл бұрын
0:58 should be "as you flip though an array of HD channels, you have a sudden thought ... THERE'S NOTHING GOOD ON!"
@mouja4756 жыл бұрын
Not correct. I have up to 30 TV Channels at 1 frequency
@Aleks60106 жыл бұрын
that's physically impossible, channels are several megahertz in bandwidth and therefore cannot be transmitted at the same or close to a frequency of another channel, because they will interfere with one another and you won't get any signal
@mouja4756 жыл бұрын
Al Eks It's possible and it's easy. We have DVB-T 2 or Satelit. I checked it I have on 1 frequency up to 78 differed channels. For example I have on the same frequency HBO HD and HBO 2 at my satellite
@Krytern6 жыл бұрын
Al Eks - You need to get with the times this isn't analogue TV anymore we aren't in the 90s.
@Aleks60106 жыл бұрын
sure, but technically it's not at one frequency, it cannot be transmitting at one frequency unless it's transmitting in ook (like morse)
@DanielFildan6 жыл бұрын
Hmm isnt channel 42 most populated ? For NOVA , Prima , Prima cool etc. ? Cuz we still have dumb SD quality when prima cool discontinued HD ._.
@mchenrynick5 жыл бұрын
There ARE times when either Cable or Satellite signal doesn't keep up. Haven't you've ever seen TV channels that just "freeze" for a few seconds, then "jump" to the current signal? You're right it doesn't buffer--it just skips to the current signal and you miss out what was broadcasted during that frozen moment of your TV signal.
@Stennishh6 жыл бұрын
unwatchable, video started buffering and killed my internet
@mordant2216 жыл бұрын
An answer to a question I've never thought of asking. THANKS TECHQUICKIE!
@williamg209two6 жыл бұрын
why did you use a british sky box for your picture at 1:05
@BassRacerx6 жыл бұрын
thats what the stock photo company had?
@ahusyn6 жыл бұрын
Same question. It's a satellite box not even cable.
@Krytern6 жыл бұрын
BassRacerx - Company uses satellite not cable, same question applies.
@Parrot48596 жыл бұрын
Result of quick editing. Give "tv guide" a Google. For me that 'screenshot' was on the third row.
@Kannamoris6 жыл бұрын
A lot of TV services in the Netherlands just use internet, but most ISPs give TV priority over everything else. But if things go South really bad, even the TV will buffer.
@Mr.Unacceptable6 жыл бұрын
If it's all the same digital data. Why can I leave 5 TV's on 24/7 and never hit a data cap? Have they just sold me an internet package , just like TV but said you can only watch 2 hrs a night? Can't get Netflix even though I have a 175/175 service because I'd go over this draconian cap in 4 days. ISP data caps are a scam. At least the tiny caps they have now are a scam. $120/month for this.
@Krytern6 жыл бұрын
The cable box uses it's own connection to recieve the TV channels. There is no data cap. The internet connection formed from the modem in your router is capped.
@Parrot48596 жыл бұрын
Cable TV uses Multicast which basically means the signal is pushed to every cable box. The cable box does not have to request anything. Unlike internet which works with a way of requesting data and then receiving it.
@GraveUypo6 жыл бұрын
yes data caps are a scam. they tried multiple times to implement those here in brazil and failed each time because the people went up in arms. only mobile has data caps here.
@prsplayer2106 жыл бұрын
My data cap is 2000 gb,I've never even came close
@Mr.Unacceptable6 жыл бұрын
I get an overage charge of $40 about every 3rd month.
@Castlee6 жыл бұрын
Oh tech quickie finally got Linus tech tips in their videos, well done
@BrandenMcNabb6 жыл бұрын
Cable TV is a luxury item for convenient entertainment. It is not something that people need. My argument is that people can stop bitching and moaning about the costs of cable or the "monopoly" that Charter and Comcast supposedly have (even though Dish Network and DirecTV are direct competitors with each). Charter and Comcast lose money on their cable services due to broadcasting fees, updating/maintaining equipment, etc. Stop bitching when they charge you $200/month for TV. That's retail price. Your $40 introductory rate is only to encourage you to sign up. They can't hold that rate without going bankrupt. Spectrum internet and voice on the other hand are almost pure profit.
@LReBe76 жыл бұрын
$200 a month for TV? That's absolutely retarded! This side of the pond, you can get TV, 200Mbps internet, telephone and a mobile package for less than $200 a month! I must say, however: broadcasting ought to be a thing of the past, especially analog broadcasting. The amount of junk TV channels eating valuable spectrum is ridiculous! I worked at the cable company in my country: more than 50% of their available spectrum is allocated for broadcast TV. They don't even dare take FM radio off their spectrum. Who even uses cable for the FM radio?
@ratchanan_sr6 жыл бұрын
Are you sure that "Digital" cable TV put each channel in dedicated frequency? I think a frequency will have a few TV channels "MUX"ed together (similar to how it's done for terrestrial digital TV). However, most of your points are still valid. The frequency is dedicated to TV transmission only, and the signal is broadcasted.
@Alex-xc3ki6 жыл бұрын
A like if you don't have a cable TV!
@nico_poriol6 жыл бұрын
I was questioning this myself throughout the week but always forgot to search. Lucky me, Linus to the rescue hahahaha thanks!
@maxbradley94776 жыл бұрын
Not first
@sabretechv26 жыл бұрын
Linus, this video is good but there are some inaccuracies here. I am a research and development engineer for the largest cable company in the US. First, each channel does not necessarily have its own dedicated frequency over the coax plan. In practice they do, but there aren’t 800 different frequencies if there are 800 different channels. Some channels that are statistically always watched are put out over broadcast frequencies, and if you flip to a channel that isn’t on the broadcast carousel, the STB will initiate a switched digital video session over a different part of the spectrum with the headend to deliver you that channel. They are essentially divided up into 6 MHz channels modulated via QAM that are bonded for HD video and are split into broadcast, switched digital video, video on demand, DOCSIS, and management frequencies. DOCSIS 3.1 also delivers RF a bit differently over the plan by using OFDM/OFDMA like 4G LTE does to support up to 4096-QAM. Also, providers including Comcast have also changed to IP video for their X1 platform. Instead of SDV they send out their broadcast channels over RF and their unicast channels over IP. This technology has been licensed by Shaw in Canada. Also, with WorldBox initiative, other providers are going to fully IP-based set top boxes which allows us to integrate services like Netflix. Some of these are very interesting, including essentially WebKit frames assembled into video, dynamic ad insertion to tailor your cable TV ads to what you like, and more. The reason this works better in comparison to Over The Top (OTT) streaming services is because the CDN traffic and such that deliver content to these IP video services are more carefully QOS’d than what’s commonly coming over DOCSIS. Many of us cable TV engineers believe that streaming and OTT are the future. It’s why we do research and development into this field and because the majority of people in the US and North America get their internet by cable, I believe more and more of the spectrum will be reallocated for DOCSIS going forward.
@asdasddas1006 жыл бұрын
Good question... lol
@crabjitsu78166 жыл бұрын
A comparison between coaxial TV service and IPTV service would be nice. Does IPTV run into the same sort of buffering/slowdown issues, detailed in this video, as streaming does?
@Hitaf7776 жыл бұрын
21st like
@thatrealba6 жыл бұрын
This was a great quickie!
@flameshana96 жыл бұрын
That's what she said.
@22techinfo6 жыл бұрын
how does techquickie work eh? like and replay if you agree
@nanopulga0986 жыл бұрын
Well that method may be used in other countries, but in Spain all the cable TV I have seen working connect to the router/modem, and if you unplug the router, you won't have cable TV, if you are using Mega to download a 4GB files and your internet connection isn't the best, that could make the cable TV image freezes a little. I can also notice in the internet speed tests when the cable TV box is turned on or turned off, I see my connection is slower when the cable TV is working and it will be a little more faster when the TV box is turned off.
@22techinfo6 жыл бұрын
What is encryption and how does it work like if you agree
@fayadkevin6 жыл бұрын
ahmed hassan he already did a video on it
@KuraIthys6 жыл бұрын
Let's see if I can make a guess before watching: Same reason digital television in general doesn't buffer. It's not an 'on demand' system. The signal is sent out on a fixed schedule. You either receive it or your don't. If you miss part of the signal for whatever reason you get a momentary dropout or signal degradation until you reach the next chunk of usable data. Buffering means the receiving device waits until it gets enough data to play the video without problems, and start and stop it in arbitrary places. Cable simply syncs you to the video already in progress, and if you miss a piece of it... Too bad, you just resume from where you left off. You can't pause, rewind or the like, and you DEFINITELY can't fast-forward. (of course, if your local device has time shifting capabilities you may well be able to pause and rewind and even go back to something you missed, but that's the device recording the video behind the scenes just like a VCR would've been used to do back in the day. It's got nothing to do with the signal transmission itself.) Well, let's see what your explanation is... XD
@yacko003 жыл бұрын
Always had this question, great explanation!!!
@MrJeroendemuzikant5 жыл бұрын
@Linus: I don't know how it is in the U.S.A. but here in the Netherlands we have DVB-C. And that uses transport streams to carry more then one station in it. So it's not really one station per frequency...That was with old fashion analog tv. Who remembers how bad that looked?
@andy02q6 жыл бұрын
Some TVs can buffer cable TV. This of course only works if you wait a few seconds before anything starts. Also some can also buffer the adjacent canals too, so no need to wait again if you switch canals by 1. Also you can pause and reverse which increase your buffer so you can skip ahead which of course you would do during the advertisements.
@pantsaregood10286 жыл бұрын
This is partially incorrect. Modern cable providers often use Switched Digital Video. Using SDV, specific frequencies aren't tied to specific channels - the broadcast is only generated on an open frequency when a cable box requests it. Other cable boxes will then be instructed to tune to said dynamic frequency if they request the same channel. After a timeout period of no viewers, the channel will stop broadcasting and its carrier frequency will be reused.
@chtitdraco3 жыл бұрын
Very clear and concise video! However, how does cable allow you to restart programs or watch them at a later date?
@bunnybreaker6 жыл бұрын
Those captions for the couple on the sofa. Savage.
@subrisubrika56526 жыл бұрын
I've ofteb wondered about this. Thanks for the explanation
@rhyscampbell76736 жыл бұрын
Buffering is not when the video stops playing. It's actually kinda the opposite. It's when your device is loading the video into memory so it can play with no interruptions. The video is always buffering as long as you have a stable connection. When it stops playing, that means it's not buffering (loading into memory) or struggling to keep up.