This episode was originally scheduled to air on November 25, 1963 but it was preempted by the coverage of the assassination of President John F. Kennedy three days earlier.
One of the only times a ceiling in the house is shown. Usually the only thing above the actor's heads was studio lights and scaffolding.
According to Lucy, she and Vivian have been living together for almost exactly 5 years.
CBS originally broadcast this episode in black and white.