Trivia: There is an inside joke in the tag scene. Ross's line about "Cro-Magnum PI," is an obvious reference to Magnum PI starring Tom Selleck as private investigator Thomas Magnum. Selleck had, as of this episode, appeared as Richard Burke in six episodes and would later appear in two more. His voice is used, uncredited, in this episode. The producers did something similar later in the season involving actress Marlo Thomas (recurring character Sandra Green) and a That Girl T-shirt. That Girl, of course, was the very successful 1966 TV series in which she starred.