When he receives a telephone call from his ex-wife at the bar, Sumner returns to her and leaves an unsuspecting Diane behind. When she tries to change their flight reservations, Diane learns that Sumner and his ex-wife have already used the reservations.

In the episode "It's a Wonderful Wife", Vera tells Rebecca off-camera that Norm's real first name is Hilary. He later explains that he was named after his grandfather who "once killed a man for laughing at him."

Cliff brags about his invention, the beetabega, a fictional hybrid of beetroot and rutabaga.

Cliff anonymously tells his supervisor that his colleague and former bodyguard, Lewis, has been stealing fragrance samples from magazines.

Woody reveals his name to be Woodrow Tiberius Boyd, a middle name he shares with Captain James T. Kirk of the Starship Enterprise.

Maggie O'Keefe first appears in season seven as a rookie postal carrier who is to be trained by Cliff. Maggie asks Cliff out, and he accepts. However, Maggie is later caught taking a postal vehicle to a motel and is fired from the post office. She then leaves Cliff to go to Canada, to join the Canadian post office.

Diane's biggest enemy is Carla, a more experienced cocktail waitress, but Diane doesn't insult Carla the way Carla does Diane which annoys Carla even more.

We don't often see the restaurant itself, but verbal disputes between Melville's owner John Allen Hill and Sam occur rather frequently.

Frasier continues the story of psychiatrist Frasier Crane as he returns to his hometown of Seattle and starts building a new life as a radio advice show host.

On a lark in college, Norm became an ordained minister of the Church of the Living Desert after seeing an advertisement in the back of a magazine.