Elizabeth Montgomery as Samantha is wearing the same nightgown as Joan Patrick playing Joan on the I Dream of Jeannie (1965) episode Who Needs a Green-Eyed Jeannie? (1966). Both shows were filmed on the same lot and used the same wardrobe department. The episodes aired 10 days apart from each other.
The title refers to a 1960's Tareyton cigarette advertising campaign that claimed that "I'd rather fight than switch."