Alan tells Judith that from his viewpoint, "your peanut butter is all over my chocolate", referring to the 1970s advertisements for Reese's Peanut Butter Cups.
While singing Christmas carols, Kandi plays the same tune ("Heart and Soul") on the piano for every song.
Charlie Sheen, Jon Cryer and Ryan Stiles (Dr. Herb Melnick) co-starred in "Hot Shots!" (1991).
Charlie Sheen and Ryan Stiles (Dr. Herb Melnick) co-starred in "Hot Shots!" (1991) and "Hot Shots! Part Deux" (1993).
Episode title spoken by Alan, to Herb (Ryan Stiles).