MI-5: Season 1

Fast-paced, but oh so British. There's something about the poker faces that rubs me the wrong way.
http://www.imdb.com/title/tt0160904/ (Original title: Spooks)

MASH: Season 7

Colonel Potter and his "Pony pucks!"-- no wonder this show lasted 11 seasons.
http://www.imdb.com/title/tt0068098/

Friends: Season 5

C'mon, what other show could contrive to put a massive raw turkey on someone's head and not make it seem forced?
http://www.imdb.com/title/tt0108778/