One for the Road (Cheers) ladies' man, former baseball player, and bartender, and Diane Chambers (Shelley Long), a college graduate student, and cocktail waitress, had on-and-off relationships throughout first five seasons of the program (1982–1987) until Diane left Boston to pursue a writing career in the season five finale, "I Do, Adieu" (1987). This was Shelley Long's last contracted appearance as Diane Chambers. Six years after the season five finale, the Sam and Diane storyline is resurrected with a special guest appearance by Shelley Long and then concluded in the final episode. During season eleven there are many transformations before the finale. Woody Boyd (Woody
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