If you haven't already watched them ...
The IT Crowd (which airs weekly on IFC)
Summer Heights High (8 episodes of pure gold on HBO. It's no longer available On Demand, but will probably be on DVD soon)
I'm also told that the precursor to SHH, known as "The Nominees" or "We Can Be Heroes" was pretty great too, though I have no idea how to find it in the States. Haven't had much luck online, but a girl in Pennsylvania insists that it's brilliant.
Other than that, I am obligated (through friendship) to plug "The Big Bang Theory" on CBS, which I will admit, I do enjoy.