From Muppet Wiki

The Kermit and Piggy Story was released by Playhouse Video in 1985, as part of a series of compilations featuring songs and sketches from The Muppet Show. In this one hour special, Kermit the Frog and Miss Piggy share a romantic dinner for two while they remember highlights of their relationship on The Muppet Show.

UK cover art from Virgin Videos.	Superstars! Kermit och Miss Piggy. Sweden

Picture	Segment	Description	Source
	Song	"Temptation"	Episode 101: Juliet Prowse
	Sketch	Backstage: Miss Piggy meets Robot Kermit	Episode 104: Ruth Buzzi
	Song	"I'm a Woman" with Raquel Welch	Episode 311: Raquel Welch
	Song	"Coconut"	Episode 410: Kenny Rogers
	Song	"Cuanto Le Gusta"	Episode 210: George Burns
	Episode fragments	Backstage: Miss Piggy asks Kermit to watch Foo Foo Floyd locks Foo Foo into a drawer	Episode 404: Dyan Cannon
	Sketch	Foo Foo the Wonder Dog	Episode 520: Wally Boag
	Song	"Lydia, the Tattooed Lady"	Episode 102: Connie Stevens
	Song	"True Love"	Episode 324: Cheryl Ladd
	Episode fragments	Backstage scenes: Tony Randall turns Miss Piggy into a stone statue Tony Randall tries to sneak the stone piggy statue out of the theatre Floyd cracks stone jokes	Episode 513: Tony Randall
	Song	"Mad About the Frog"	Episode 318: Leslie Uggams
	Song	"I Enjoy Being a Girl" with Cheryl Ladd	Episode 324: Cheryl Ladd
	Episode fragments	Dressing Room: Miss Piggy's pictures of Christopher Reeve	Episode 418: Christopher Reeve
	Song	"I Won't Dance"	Episode 210: George Burns
	Song	"Pig Calypso"	Episode 221: Bob Hope
	Episode fragments	The pigs take over the show: The pigs capture Kermit Miss Piggy talks to Kermit in the boiler room	Episode 224: Cloris Leachman
	Episode fragments	Backstage: Kermit fires Miss Piggy Kermit asks Loretta Swit to replace Miss Piggy in Veterinarian's Hospital Veterinarian's Hospital: Nurse Loretta Swit "Some of These Days"	Episode 502: Loretta Swit
	Sketch	The Wedding Sketch	Episode 310: Marisa Berenson
	Song	"Ukulele Lady"	Episode 215: Lou Rawls

Goofs

Kermit states that the Wedding Sketch happened a few weeks after he fired Miss Piggy in episode 502. The sketch was actually from two seasons before this in episode 310.