I just spent the weekend and today watching the 3 seasons of this show after one of my mates recommended (even though another encouraged me not to).
Weekend well spent! I absolutely love this show, its great how a comedy can be so good whilst still having a somewhat dramatic plot-line. Plus, it's finally good to find a show that is clever in the way it tells jokes, and actually has running gags that are worth it. The Chicken Dance is probably one of the best running gags I've seen in any show.
Bring on 2013!