Can sitcoms have moxie? If they can, then Community, which is always teetering on the edge of cancelation, definitely has it. On the road to its fourth season premiere, everyone involved with the show has been forced to deal with a maelstrom of crap: low viewer turn outs; a public spat between creator Dan Harmon and sexagenarian prat-faller Chevy Chase; the subsequent ousting of Harmon by NBC; and the delay of this season’s debut, which demonstrated NBC’s general ambivalence about the show’s future. Other sitcoms have been squashed by a lot less but Community is “the little cult hit that could.” The majority of the cast, crew, and fans soldier on and will continue to do so for at least a little while longer. As the fourth season begins, the show’s irreverent, self-referential humor appears unaltered by all of the behind-the-scenes upheaval. Yeah, that’s right, Harmon’s NBC sanctioned replacements, David Guarascio and Moses Port, didn’t Britta the premiere. In this impressive first episode, which is hopefully a sign of what’s to come and not some bait-and-switch anomaly, the gang return to Greendale after summer break and prepare for their senior year. Jeff (Joel McHale) informs the study group that he took online classes behind their backs (he’s still fighting the love he has for his wacky crew). As it turns out, Jeff is only one history credit away from graduation, news that amplifies Abed’s (Danny Pudi) anxieties about everyone eventually splitting up.