Cheers Tie-ins
Although not a spin-off, Wings takes place in the same universe as Cheers, and by extension, its spin-off Frasier. Several episodes had tie-ins with Cheers; Kelsey Grammer (who was nominated for an Emmy for his guest appearance), Bebe Neuwirth, George Wendt, John Ratzenberger, and Kirstie Alley all appeared on Wings playing their Cheers characters.
- Cliff Clavin and Norm Peterson visit Nantucket in the season two episode "The Story of Joe". Their goal is ostensibly to go fishing, but the two never seem to get any farther than the island's drinking establishments.
- Frasier and Lilith Crane were the focus of the season three episode, "Planes, Trains, & Visiting Cranes." In the episode, Frasier and a skeptical Lilith come to Nantucket to put on a motivational seminar, but run into opposition from Helen Chappel, a dissatisfied former customer of Frasier's program. In the Cheers episode "License to Hill", which aired the same night as that particular Wings episode, Frasier even mentions that he and Lilith are going to Nantucket, foreshadowing their crossover appearance. (An additional note: Nine years later, at the beginning of the Frasier episode "Bla-Z Boy," Niles plays the Wings theme on the piano.)
- Rebecca Howe has a cameo appearance in the season four episode "I Love Brian", whose plot revolves around Brian's attempt to infiltrate a post-concert party in Clint Black's hotel room. As Rebecca is seen being asked to leave by Black's bouncer, she begs Black to come to the bar in Boston where she works so she can prove to the others there that she knows him. Black responds, "Maybe next year", causing Rebecca to exclaim right before she is kicked out of the party, "But none of you know where we're going to be next year!", a reference to how Cheers was in its final season on television.
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