I remember watching M*A*S*H reruns with my parents as a kid. I thought they were really funny but I never laughed because I knew my parents didn't think I was old enough to think they were funny. I was a very odd child.
I think I appreciated the Toy Story movies so much because they are very clever, and there are things that I would have thought were funny 15 years ago, and other things that I think are funny now that I wouldn't have understood 15 years ago. I can't stand most animated movies.
I'm a big fan of a lot of the above: the Simpsons ("My God! The dead have risen--and they're voting Republican!"), King of the Hill, Fargo, Monty Python, the Onion. I'm not generally a big slap-stick person but my class studied the 1920's when I was in sixth grade and I cannot resist Charlie Chaplin and Buster Keaton.