Andy Barker, P.I., lasted a whopping six episodes, and that is just a shame. The show was smart and funny, and Andy Richter was a very likable lead. Alas, it wasn't meant to be and now Richter's full-circle career is back where it began: backing up Conan O'Brien (no shame in that; this guy probably goes home each night and swims through a giant safe full of money a la Scrooge McDuck).
Check out what may be my favorite episode here: