From Muppet Wiki
Ever since the early days of Sam and Friends and Muppet commercials, there has been a long tradition of Muppet characters eating each other.
In the "Inchworm" sketch, which Jim Henson performed on many variety shows in the 1960s, Kermit the Frog would sit on a wall, eating passing worms. A Muppet monster would drag Kermit off the wall and then re-appear making a chewing motion, creating the illusion that Kermit was eaten whole.
For later sketches, a "slit" in the second Muppet's mouth was made so the eaten Muppet could be pulled through and, if necessary, performed from inside the second Muppet after being "eaten".
- Cookie Monster tries to eat Guy Smiley in a bakery segment when he thinks that he is the thing Guy told him that's eatable and rhymes with "buy"
- In Episode 0001 of Sesame Street, a yet unnamed Cookie Monster tries to eat Kermit (by his frog leg), after devouring the letter "W" in his lecture.
- A cow nibbles on a Muppet stack of hay as they exit frame in Forgetful Jones' "Oklahma" sketch.
- Episode 202: Behemoth tries to eat Zero in the opening.
- Episode 202: Zero tries to eat Sam and Mean Mama tries to eat Zero during the closing.
- Episode 205: Judy Collins: The Old Lady Who Swallowed a Fly swallowed a fly, a spider, a bird, a cat, a dog and assorted other shadow-puppet animals before she exploded.
- Episode 316: A lunchbox eats a construction worker.
- Episode 419: A shark tries to eat a lobster during the UK Spot "Boom-A-Raka-Sacky".
- Episode 115: Candice Bergen: During the talk spot, Kermit tells Candice Bergen that last week, Sweetums ate the guest.
- Episode 101: Michelle Pfeiffer: Rizzo the Rat reveals that he ate the Dancing Cheeses.
- Food: A lizard eats a bumblebee, then a snake eats a lizard, a hawk eats a snake, the hawk crashes into a tree and falls and gets eaten by a crocodile, who gets eaten by Luncheon Counter Monster, who gets eaten by Doglion.
- Leo and the Monster: Luncheon Counter Monster threatens to eat Leo if he doesn't shorten his speech.
- Episode 105: The Howling: Roy Hess eats a live creature who can be seen while Roy eats with his mouth open, but spits it out.
- Episode 214: Fran Live: Robbie eats a live creature, but spits it out.
- Episode 316: Steroids to Heaven: Dolf and Robbie eat some of the Thornoids.
- Episode 413: Into the Woods: The Swamp Monster eats a baby dinosaur in the "Your Solo Wilderness Ritual" video.
- Episode 203: I Never Ate for My Father: A small creature in the woods says that he tried to get his son to be a carnivore, and ate him when his son didn't become one.
- Episode 217: A New Leaf: B.P. Richfield says that he ate a little boy for breakfast and was planning to eat that boy's sister for lunch.
- Episode 224: WESAYSO Knows Best: B.P. Richfeild says that he bit his nephews head off.
- Episode 308: Hungry for Love: It's revealed that B.P. Richfield ate his daughter Wendy's last four boyfriends.