The Beverly Hillbillies is good old-fashioned TV. Sure the humor isn't now, and wasn't then, cutting edge -- but sometimes it's nice to sit and watch some simple good-hearted comedy.
The jokes are standard sitcom fare, and the characters broad stereotypes. Still their humanity showed through. Granny toting her shotgun was always funny, Jethro always dumb, but happy -- and Elly May always the pretty tomboy.
The premise was as simple as can be -- the fish out-of-water hillbilly Clampett clan in Beverly Hills -- but America immediately loved it. The series lasted almost a decade and was #1 in the ratings it's first two years. Since then its folksy comedy has survived as a rerun staple, entertaining, literally, generations.
One of the classics of American comedy.