Saturday Night Live

Castmates Chevy Chase and Bill Murray got into a physical altercation in 1978.

Action star has been called the worst host in show's history.

Nudity, profanity and inciting a riot are apparently frowned upon at 'SNL.'

Turnover behind and in front of the camera led to an unusual finale.

TV pioneer also created 1982 sitcom 'Square Pegs.'

The 19-year-old's sharp improv skills landed him a regular gig on the show.

Comedian's brief tenure on the show lasted only 12 episodes.

Cast member muttered expletive during slow-closing 'Dallas' parody — and was fired after one more episode.

The future star had only one speaking part in his first episode as a cast member. It went so poorly that the sketch was cut in reruns.

John Belushi and Dan Aykroyd delivered their first 'Saturday Night Live' blues performance on Jan. 17, 1976.