I have been trying to find a video of the original airing in 1988 of Mike Taibbi's "Cult of Rage" 3 part series that broke the story on how Missing Foundation were cult and satanic leaders in the East Village. I've never found it, but instead I did find a promo for the show, which aired during Star Wars. Some Star Wars fan found it desirable to post all the commercials that aired during the show, with some excellent clips of Pete Missing and his infamous bullhorn, and also with his clothes on fire (I didn't remember that part). There is one very very short clip at 1:15 of Mark Ashwill throwing a chair.
While the whole thing is pretty funny to watch, the Cult of Rage promo starts at 1:02.