It is revealed that the previous episodes of season 6 were all a dream. Katey Sagal had miscarried in real life, so the writers decided to get rid of Peggy and Marcy's pregnancies.
When Jack Dallas opens the door to his office, the door opposite is for the office of Acme Rocket Co., which is where Wile E. Coyote buys equipment in the Road Runner cartoons.
Ron Leavitt, one of the show's creators, plays Jack Dallas, Private Eye. Years later, he died young of lung cancer. His fiance, Jessica Hahn, who he met in an episode, lives in his house now.
This episode was taped on November 8, 1991.