"Community" -- When NBC left this underappreciated show off its midseason schedule, fans flew into a rage. And who can blame them? The campus comedy about misfit members of a study group continues to be one of the funniest and most inventive half hours in prime time. Now, it finally returns to continue its third season with an episode that has Shirley (Yvette Nicole Brown) being asked by her ex (Malcolm-Jamal Warner) to remarry him, and the eccentric duo of Troy and Abed (Donald Glover, Danny Pudi) practicing to be "normal" (good luck with that). If there was ever a time to rally around "Community," it's now, as lackluster ratings make it a candidate for cancellation when the season ends. 7 p.m. Thursday, KSL Channel 5.