Green Acres. All us kids thought it was so cool when the tv show started. We all called it Green Acres but it didn't have a sign (was told there was one at some time) but most people don't know what it's called. It's only three streets on the outskirts of Eastport in Annapolis Maryland.
I saw the *all* in the 70's but I think my favorite may be Gilligan's Island. Probably the sense of adventure (cool! on an island) combined with the funny inventions and the silly situations the group found themselves in,
... I'd have to go with shows such as Dad's Army, Fawlty Towers, Two Ronnies, Monty Python and On the Buses. Even though I'm much too young to have been around when these shows were, they're so much bettter & funnier than the modern 'comedy' of today!