One More thing
I will never find it - it will never be rebroadcast.

Don Rickles once hosted Saturday Night Live. In the opening sketch, before the theme, Joe Piscipo had to slap him. And Don's reaction was not to say the scripted line. "What did you hit me so HARD for? You didn't do that in rehearsal! I hope Eddie Murphy robs your house!" And everyone broke up, and Don just went from cast member to cast member, berating them, and they were giggling or shocked but all silent. The cue cards could not help them. Then the band went and the credits rolled.

Next sketch, as it went on, the actors started to look worried as they read their lines. Don was clearly not where as he was supposed to be, as he was edging closer and closer to Joe Piscipo. And then his character found an excuse to start slapping him repeatedly. Everyone else broke up, and Don slapped him until they cut to commercial.

Next scene (this was the season where Joe Piscipo and Eddie Murphy were in everything) they were doing something and Don had a line in an accent or a dance or something, and Joe read his line from the cue card, and Don was like , "What did you do that so soon for? Let me do my accent for crying out loud! I practiced for this!" Again - cast goes silent, and then Don starts insulting them until we cut to commerical.

Not a single sketch got finished that night, and I've never seen it rerun. I wish they did... it was the best episode of SNL ever.