As a kid, I occasionally hung out on the set of Rowan and Martin's Laugh-In, watching them tape the world's fastest-paced comedy show at about the speed of a snail. It always seemed to take forever, but that was fine because you got to see the cast members screwing around between takes, and bitching as the schedule stretched into triple-golden overtime. Most of them seemed to be having enormous fun and I suspect the off-camera camaraderie had a lot to do with the on-camera success of the show. Several members of the Laugh-In cast have either set up websites or fans have set them up unofficially. Most don't have that much on them yet, but you might like to check them out.
(The bio on Judy Carne's site is a pretty good summary of a pretty awful series of life tragedies.)