I have a fondness for Are You Being Served?, but it's based on the time that I discovered it rather than the actual quality of the show. It's funny to me like Stooges (not the Iggy Pop version) or Sanford and Son are funny.
John Inman was always really cagey on whether Mr. Humphries was supposed to be gay. That's one of the most disingenuous things I've ever heard - if he's not gay, then what the hell is the show about? If Mrs. Slocombe had had a parrot instead of a cat, and Mr. Humphries were straight, what would they have been talking about?