Outside of The Three Stooges, I like The Marx Brothers, Abbott & Costello, Laurel & Hardy, Martin & Lewis.
I also like all the Mel Brooks movies. Great body of work with interesting cross-references between all the films.
From TV, I like The Monkees. They were filmed at Columbia and utilized lots of the same sets that were used in later Stooges films. It's been interesting recognizing those sets like that. Also, their comedy is like the old comedy teams, especially The Marx Brothers.
Wayne's World is a movie that also reflects the old comedy teams. Too bad Myers and Carvey couldn't get along in real life, apparently. They would have been great, had they stayed together.
I also enjoy the occaisional Charlie Chaplin film. My favorites of his: "Modern Times" and "The Gold Rush."