The Muppet Show: Season 1, Episode 16
Avery Schreiber (16 Apr. 1977)
In an effort to make Kermit jealous, Miss Piggy instructs Scooter to tell him that guest star Avery Schreiber is smitten with her. But when Kermit finds out it was all a trick, Piggy karate-chops everybody in her path.