 His full name was subsequently changed to Heathcliff, even though in one episode Clair called him "Heathclifford", and he is commonly called "Cliff" throughout the series.Originally, Cliff was to have worked as a chauffeur, with most of the humor coming from his interactions with customers.However, the show was changed before airing to have Cliff be a medical doctor, and the humor to come from his interactions with his family.