Miss Piggy wound up on top of the "New York Times" Bestseller List. Miss Piggy's personality and voice were seen and heard in other female characters performed by Frank Oz before the character's debut. 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
The Muppet Show Prowse. The high cost and effort of creating these unique Muppets, scheduling conflicts, and potential legal issues contributed to the decline of this practice, although Muppet caricatures and parodies would continue to appear. The first episode opens on a character called Wally and develops as he types the script on his typewriter. In the second pilot, a new character called Nigel acts as the backstage boss. Statler and Waldorf grumble from a living room while watching the show on television (This setting for Statler and Waldorf would be revisited in the first series of "Muppets Tonight"). In both pilot episodes,