1955

That year Muppets debuted,

Appearances

 * Jim Henson and the Muppets make guest appearances on Footlight Theatre.

Muppet Character Debuts

 * Sam and Friends: Kermit, Harry the Hipster, Yorick, Icky Gunk, Sam, Mushmelon, Omar, The Professor, Hank & Frank, Moldy Hay, Henrietta