When Bob is in Becker's apartment and goes to the fridge for a beer, he says, "I hope you went shopping, 'cause that stuff you had last time, I wouldn't shampoo my dog with that." This is possibly a reference to the episode of Cheers (also starring Ted Danson) called "Now Pitching, Sam Malone" (S01E13), in which Norm asks Coach for two bottles of Fields beer and comments, "Normally I wouldn't use that to shampoo my dog but, Sammy, you just sold me."