 While they were promoted as a single programming block, the three components were individual series with separate casts, writing and production staffs, with the core production companies, Kayro-Vue and Universal Television (who also produced "The Munsters" for CBS that season), being the only common component.Besides the umbrella title/address, the only on-air continuity from one series to the next was provided by Guy Raymond, who portrayed handyman Cliff Murdoch, often seen greeting the residents as they approached their apartments.Premiering October 5, 1964, "90 Bristol Court" got its name from the fact that the program ran 90 minutes (and that the initials of Ninety Bristol Court spelled NBC).