 For instance, a "Sesame Street" Muppet skit from 1971 featured Snow White performed by Frank Oz and acting (as well as sounding) like Miss Piggy.Another sound-alike came from a contestant in a Guy Smiley sketch called "The Mystery Mix-Up Game".In "The Muppet Show" episode 106, Piggy is referred to by the full name "Piggy Lee" and in episode 116, Piggy tells guest star Avery Schreiber that Piggy is short for "Pigathius", "from the Greek, meaning "river of passion".