The IT Crowd is a consistently funny show (from Graham Linehan - the same person who brought us Father Ted.) It airs in the U.S. on IFC - a channel you probably don't get, or ignore. (It's usually way up the digital dial - channel 160-something.)
A good show got even better with the addition to the cast of Matt Berry (above), a former regular from Garth Mereghi's Darkplace. This clip contains his best bits from the first episode of Series 3 - it will give you some idea of the humor on the show.