Cheers (season 9) waitress Carla, bar tender Woody Boyd and manager Rebecca Howe work at the bar and deal with the patrons of the bar Norm Peterson, Cliff Clavin and Frasier Crane. The sitcom was the involved in the NBC Thursday night slot. <onlyinclude></onlyinclude> Cheers (season 9) The ninth season of "Cheers", an American television sitcom, originally aired on NBC in the United States between September 20, 1990, and May 3, 1991. The show was created by director James Burrows and writers Glen and Les Charles under production team Charles Burrows Charles Productions, in association with Paramount Television. Cheers is an award-winning sitcom
What Is... Cliff Clavin? What Is... Cliff Clavin? "What Is... Cliff Clavin?" is an eighth season episode of the American television series "Cheers". It was directed by Andy Ackerman rather than James Burrowswho directed 243 out of 273 episodes of the showand originally aired January 18, 1990 on NBC. In this episode, Cliff Clavin (John Ratzenberger) appears on the game show "Jeopardy!" and game show host Alex Trebek guest stars as himself. Cliff racks up an insurmountable lead during the game, only to lose it all in the final round. The episode received praise from critics for its concept and its guest star. Cliff