There are 12 episodes of Fawlty Towers and 295 episodes of Last of the Summer Wine. Doesn't make it funnier, though, the longevity. Nobody quotes Foggy and Compo the way they do Basil and Sybil.
It is 42 years since a severely concussed Torquay hotelier told his staff not to mention the war and the phrase remains part of the nation's vocabulary.
Commercials are still made parodying scenes from a show almost half a century old without a syllable of explanation and everyone gets the joke.
Last of the Summer Wine did it longer and more often but it wasn't as good.