Hyn O Fyd titles - BBC Schools - 1983

I remember from Radio Times listings this translates as 'This World'. Recorded during Spring half-term 1983, either Friday 25th Feb or the week prior. See the listings at: genome.ch.bbc.co.uk/schedules/...
Even though S4C had launched several months earlier (in Nov'82) and was showing Welsh-language schools programmes itself, it seems BBC1 continued to air them too.
(Previously seen on another KZbin channel, this clip is uploaded from the original off-air recording.)
Ref:XT1/93/01:05

[@steviegTVreturns]

What happened between 83 and 87? As I can't say I've ever seen any 'on certain transmitters only' for any BBC2 era schools programmes.

[@darren2514fv]

After November 1982 Welsh Language Schools programming from the BBC moved to S4C