I'd say Friends and Sex and the City. Though I am lucky that several channels still have the reruns (Velvet, Star). These two shows never failed to make me laugh. My two fave episodes: Brad Pitt as Will who hates Rachel (Thanksgiving) and the episode when Rachel and Ross were arguing about who seduced who :-)
I enjoyed the adventures of these ladies. Though yung last season lang ang napanood ko ng complete. I guess I should scout for DVDs of the earlier seasons para I can watch all episodes :-)
I also enjoyed FULL HOUSE (John Stamos, Olsen twins, etc.) and SAVED BY THE BELL (Mark Paul Gosselaar).