In this episode, Doris Roberts plays Fred Willard's mother. They would reunite over a decade later on "Everybody Loves Raymond", in which they would play in-laws to each other's children.
Billy Crystal and Fred Willard both appeared in "This is Spinal Tap", although they shared no scenes together.
Larry Hankin and Doris Roberts would go on to appear in two separate John Hughes Christmas movies" Hankin in "Home Alone" and Roberts in "National Lampoon's Christmas Vacation".
Shortly after the title characters leave home, Larry suggests they form a band called "Peter, Paul, and Larry". This is a wordplay on the real-life folk band Peter, Paul, and Mary.