BI

I loved the scene in the restaurant, when every one has a few letters on their shirt, spelling 'happy birthday'. Rick is chatting up the waitress, and she's receptive... until he takes off his jacket, and she sees that his shirt says BI, in big letters! The helpless look on his face is priceless.
Man, I miss this show! Maybe if I say it wasn't funny, and that it wasn't perfect... they will release the next 3 seasons they secretly shot.