Season 4

November 16, 1979

The pigs are excited that guest star Beverly Sills plans to perform the opera "Pigoletto" as the closing number.

November 23, 1979

Inspired by mimes Shields & Yarnell, Fozzie Bear works on a mime act, including "Bear walking against the wind". Kermit suggests that Fozzie find a more original act, so Fozzie tries out "Bear feeding spaghetti to an elephant" and "Bear going to a drive-in movie with a porcupine".

November 30, 1979

During a sketch Kermit hurts himself and keeps getting frightened by jungle animals in his hospital room or injured further by some crazy inconvenience.

December 7, 1979

Miss Piggy announces that this show is Kermit's birthday, and before he can react, she launches into the tribute she's organized. They've planned a This Is Your Life-style show with birthday greetings, including one from Mr. Dawson, Kermit's old acting coach from Leland, Mississippi. Wayne and Wanda, the singing duo from the first season, show up and give Kermit such a guilt trip that he rehires them. When they sing, Kermit remembers why he fired them in the first place.

December 14, 1979

John and Kermit have a surprise for the cast; they're all going to Kermits' home the swamp! But even Gonzo, even with his love of the nasty and strange, thinks it's a bad idea and no one is willing to take him up on the offer even when Kermit offers them to go.

December 21, 1979

For guest star Arlo Guthrie, the stage is turned into a farmhouse. The Swedish Chef plans a home-cooked meal, but the turkey refuses to be skewered, the pig busts him in the face, and the "beef" stampedes over him.

December 28, 1979

The Muppets present a murder mystery. Kermit is a private eye hired by Liza O'Shaugnessy, an actress whose production is being terrorized by a killer. The director, Fritz (Strangepork), is shot. The police assign Patrolbear Fozzie to the case, and he interrogates the cast: "All right, which one of you killed the director?" The suspects are themselves killed one by one, until Kermit and Liza team up to unmask the true killers.

January 4, 1980

Statler is sick (of the show), so Waldorf brings his wife Astoria to the show. Meanwhile, Inspector LaBrea of the County Environmental Department arrives backstage to monitor the noise level of the show. LaBrea tells Kermit that to keep the noise down, he has to cut the trumpets for the show. Kermit tries to keep LaBrea busy while Dizzy performs.

January 11, 1980

Phyllis hosts the 1st annual Muppet Awards, recognizing the greatest Muppet Show performers. Kermit, who hates awards shows, sits out the show, but Miss Piggy is absolutely determined to win.

January 18, 1980

After years of failure Gonzo is actually appriciated for the actor he is and decides to quit the Muppet Show and move on to movies. Piggy, more jealous than sad, asks Gonzo to refer her to the director. This is one of the episodes that teeters on the edge of being very sad.

January 25, 1980

As Miss Piggy prepares for her act, she leaves her dog Foo-Foo in the care of Floyd. Piggy tells Floyd he has to spoon-feed and floss the pampered Foo-Foo, so Floyd locks the dog in a drawer. Frantic, Piggy searches everywhere for Foo-Foo.

February 1, 1980

Scooter bugs everyone by leaving his skateboard lying around. Kermit trips on it and smashes a set. Later, Anne performs while the Muppets all dance on skateboards.

February 8, 1980

Jonathan is convinced that a gypsy has put a curse on the show, and while Kermit scoffs at the idea, he does notice that everything is going wrong. A few acts have to be canceled, but Kermit refuses to believe there's a curse until a meteorite falls on his flipper. In the final stage of the curse, everyone begins to speak in mock Swedish.

February 15, 1980

Everyone has a superhero bug, donning costumes and trying acts to impress the star of Superman: The Movie.

February 22, 1980

In honor of "Wonder Woman" Lynda Carter, Scooter buys a mail-order course on how to be a superhero. Soon, a crowd of Muppets are wearing silly costumes and reading Invincibility Made Easy. Meanwhile, Miss Piggy appears as "Wonder Pig", and battles a giant chicken.

February 29, 1980

The regularly-scheduled guest (a terrible singer) is bumped when four stars of Star Wars Episode IV: A New Hope suddenly appear in the theater. It's a natural for the Pigs in Space.

March 7, 1980

Alan accidentally drinks Bunsen Honeydew's Jekyll-and-Hyde potion, and turns into a rampaging monster. He runs amuck, as the ultra-cute Bun-Bun Brothers sing "Zip-A-Dee-Doo-Dah." When Kermit catches Alan in a net, he turns back into himself. Soon, Kermit takes a sip of the potion himself.

March 14, 1980

Fozzie Bear tries out a magic act, pulling a rabbit from a hat. Instead, he gets a rabbi, and then a robot. He taps the hat too hard, and gets dozens of rabbits, who follow him around and call him "Daddy."

March 21, 1980

Miss Piggy asks Andy to sing "Love Story" for her and Kermit, who have just become engaged. Unfortunately, Kermit hasn't heard about the engagement yet. The rumor slips out, and soon everyone thinks Kermit and Piggy are getting married.

March 28, 1980

Miss Piggy buys a cute new pair of shoes, but they're too small, and she can't walk in them. She wants to take them back, but Kermit compliments them, so she has to keep wearing them. She complains to Carol, who says she should have them stretched, and gives them to the gigantic Timmy Monster, who runs around the block in them.

April 4, 1980

The show's audience members are getting horrified at everyone on stage except Diana Ross.