Cheers is a TV series that aired on NBC from September 30, 1982 to May 20, 1993 for eleven seasons.

Outgoing Crossovers

Characters	Guest On	Date	Episode	Crossover Type
Carla Tortelli, Cliff Clavin, Norm Peterson	St. Elsewhere	March 27, 1985	S03E24: “Cheers”	A
Carla Tortelli	The Tortellis	January 22, 1987	S01E01: “Pilot”	A
Cliff Clavin, Norm Peterson	The Tortellis	February 4, 1987	S01E03: “Frankie Comes to Dinner”	A
Cliff Clavin, Norm Peterson	Wings	October 5, 1990	S02E02: “The Story of Joe”	A
Frasier Crane, Lilith Sternin	Wings	February 13, 1992	S03E16: “Planes, Trains and Visiting Cranes”	A
Rebecca Howe	Wings	February 25, 1993	S04E17: “I Love Brian”	A
Lilith Sternin	Frasier	February 3, 1994	S01E16: “The Show Where Lilith Comes Back”	A
Lilith Sternin	Frasier	November 15, 1994	S02E08: “Adventures in Paradise: Part 1”	A
Lilith Sternin, Dianne Chambers	Frasier	November 22, 1994	S02E09: “Adventures in Paradise: Part 2”	A
Sam Malone	Frasier	February 21, 1995	S02E16: “The Show Where Sam Shows Up”	A
Diane Chambers	Frasier	February 13, 1996	S03E14: “The Show Where Diane Comes Back”	A
Lilith Sternin, Frederick Crane	Frasier	November 26, 1996	S04E07: “A Lilith Thanksgiving”	A
Lilith Sternin	Frasier	March 3, 1998	S05E15: “Room Service”	A
Woody Boyd	Frasier	February 4, 1999	S06E13: “The Show Where Woody Shows Up”	A
Hester Crane	Frasier	September 23, 1999	S07E01: “Momma Mia”	A
Lilith Sternin, Frederick Crane	Frasier	November 18, 1999	S07E09: “The Apparent Trap”	A
Lilith Sternin	Frasier	May 22, 2001	S08E24: “Cranes Go Caribbean”	A
Lilith Sternin	Frasier	September 25, 2001	S09E01: “Don Juan In Hell: Part 1”	B
Diane Chambers, Lilith Sternin, Nanette Guzman, Hester Crane	Frasier	September 25, 2001	S09E02: “Don Juan In Hell: Part 2”	B
Carla Tortelli, Cliff Clavin, Norm Peterson, Phil, Paul Krapence, Walt Twitchell	Frasier	April 30, 2002	S09E21: “Cheerful Goodbyes”	A
Lilith Sternin, Frederick Crane	Frasier	November 5, 2002	S10E06: “Star Mitzvah”	A
Lilith Sternin	Frasier	February 4, 2003	S10E13: “Lilith Needs a Favor”	A
Lilith Sternin	Frasier	November 18, 2003	S11E09: “Guns 'N Neuroses”	A
Nanette Guzman	Frasier	February 24, 2004	S11E15: “Caught in the Act”	A

Spinoffs & Outgoing Cast

Characters	New Show	Date	Episode
Nick Tortelli, Loretta Tortelli, Anthony Tortelli, Annie Tortelli	The Tortellis	January 22, 1987	S01E01: “Pilot”
Frasier Crane	Frasier	September 16, 1993	S01E01: “The Good Son”

Specials & TV Movies

Name	Date
Uncle Sam Malone	?
Mickey’s 60th Birthday	November 13, 1988
“The Earth Day Special”	April 22, 1990

(Note: Uncle Sam Malone is a special half-length episode made to promote U.S. Savings Bonds. I do not believe it aired on television and have conflicting information as to the production and release date though it was 1982 or 1983.

Mickey’s 60th Birthday and The Earth Day Special are mass crossovers of various TV and film characters)

Cartoon Crossovers & Follow Ups

Sam, Carla, Cliff, Norm, Woody, and Frasier appear on The Simpsons in the episode “Fear of Flying”. All are played by their original actors except for Frasier, who is not voiced. Interestingly, Frasier actor Kelsey Grammar is a recurring actor on The Simpsons as Sideshow Bob.