That Warm Glow has made a list of the top 10 “best brilliant-but-canceled too soon shows of the decade” the ones that should have become huge hits but never did. (“Freaks and Geeks” is not eligible, started before 2000):

4. “Undeclared” (Fox, 2001)
Seth Rogen. Jason Segel. Judd Apatow. Guest stars Adam Sandler, Will Ferrell and Ben Stiller. How in the world did this series fail? Probably because Fox never promoted it. Comedy was dead after 9/11, remember? The series followed the wacky hijinks of a group of college freshmen, and for a few short months it was the funniest thing on TV. Instead of going the “American Pie”-model sex/gross-out comedy route, the show was actually fairly realistic, finding humor in the stresses and emotional turmoil (and, OK, potty humor) that defines the college years. Who didn’t know guys just like Marshall and Ron (Timm Sharp and Rogen) in college? There were so many high points: Loudon Wainright III as the dad who wants to be one of the guys; the pre-”Sons of Anarchy” Charlie Hunnam (he’s British!) as a pretty-boy drama student; and my favorite character, Perry (whatever happened to Jarrett Grode?), the deadpan, sarcastic guy who stole every scene he was in and could break into freestyle rap at the drop of a hat. It had witty, razor-sharp dialogue, was consistently hilarious and heartfelt and a stars-of-tomorrow cast. Of course it was doomed to fail.