Jack tries to sell his house. Frank Nelson plays a golf instructor.

Liz tries every trick in the book to persuade Mr. Atterbury to give George a raise. Frank Nelson plays a waiter.

The principal of a rival high school tries to poach Stretch for his football team. Frank Nelson plays the rival principal.

Dennis submits a baby picture of Mildred’s mother to a baby picture contest. Frank Nelson plays the contest official.

Jack goes to the doctor for a vitamin shot. Frank Nelson plays the doctor.

Phil tries to sell the house. Frank Nelson plays a potential buyer.

In another of the show’s great Christmas shopping episodes, Jack decides to buy Don a gopher trap. Frank Nelson plays a floorwalker.

Dennis still tries to get a raise from Jack. Jack goes to the DMV to renew his license. Frank Nelson plays a driving instructor.

Liz and George want a new dishwasher, and their neighbor gets them a chance to win one on a radio quiz show. Frank Nelson plays the quizmaster.

Gildy tries to figure out what’s causing his sneezing fits. Frank Nelson plays a doctor.