Ghostbusters: Emergence of Samhaine

Here is a clip from the 2nd Samhaine episode, where he escapes from the containment unit and turns the Firehouse into a Spirit Fortress.
And yes, its spelled "SAMHAINE" with an e, even though it is misspelled everywhere else, including the boneheads behind his action figure, who thought he was "Sam Hain"
(Apologies for the quality, but its from an old tape and had to be compressed twice, once by me and again by KZbin).
Samhaine was originally captured a year before in an episode written by the creator of Babylon 5, J. Michael Straczynski. Although he was popular enough to be one of the few ghosts to recieve his own action figure, and would be seen a few times more in cameos here and there (including the opening credits to the EXTREME Ghostbusters, ten year later), he had only the two episodes as his own. JMS did write another Halloween ep for the 1989 season, but decided to (aghast) leave Samhaine out of it.