The Muppet Introduction (1975)

"Janice introduces "the person who will introduce the person who will introduce the next speaker," P. Fenton Cosgrove, who brings on Sam the Eagle, who (reluctantly) presents Kermit." (Muppet Wiki)

The Muppet Introduction is a 1975 movie. Genres: Comedy. Main cast: Jim Henson, Frank Oz, Jerry Nelson, Fran Brill. Runtime: 2 minutes.