I know we have the 'movie quotes' thread, but i though a comedy show one would provide a laugh.
I'll start us off with a few.
From 30 Rock (on Kenneth looseing his job to Jack in a poker game)
Liz: Kenneth, why did you bet that terrible hand?
kenneth: Why? Because I believe life is for the living. I believe in taking risks and biting off more than you can chew. And also, people were yelling and I got confused about the rules.
Liz: [about Kenneth] Well, it was nice of you to let him keep his job.
Jack: The Italians have a saying, Lemon. "Keep your friends close and your enemies closer." And although they've never won a war or mass-produced a decent car, in this area they are correct. In five years we'll all either be working for him... [Kenneth happily bikes away] or be dead by his hand.