Audio problem: In the ballroom sketch when Janice is talking to Zoot, her mouth starts moving before we hear her even say anything.
The Muppet Show (1976)
1 audio problem - chronological order
Starring: Frank Oz, Jim Henson, Dave Goelz, Richard Hunt
Mark Hamill - S4-E16
Revealing mistake: When Luke Skywalker is introducing his 'cousin' Mark Hamill at the end, you can tell it's a split screen by the fact that Luke looks right past him, even once he's on stage. (00:25:10)
Statler: You know I never liked this show's theme music.
Waldorf: Niether did I.
Kermit: You promised.