What Is... Cliff Clavin? show's host, Alex Trebek, later arrives at Cheers, tells Cliff that his response should have been accepted earlier, and announces his resignation as the host of "Jeopardy!". However, Cliff convinces Trebek to remain as host by telling him how much the show and Trebek mean to him. After Cliff shares the news with others, Norm Peterson (George Wendt) praises Trebek for doing this just to make Cliff feel better. However, Trebek says that he did not realize that Cliff was at the bar and that meeting him had been a coincidence. Trebek says that Cliff scares him and that the
Norm Peterson demand an immediate cash payment instead of a tab. Nevertheless, Norm annually received a complimentary beer on his birthday. Norm's best friend is postman and fellow barfly Cliff Clavin. Norm has a wife named Vera who is often mentioned but her face is never seen. When she is finally shown, her face is covered in pie thrown by Diane (season 5, episode 9 "Thanksgiving Orphans,") and the actress is uncredited. The only other times she is seen, viewers can see only her legs and at one time her waving from a car which drives past Cheers on her 15th wedding