A lot of sitcoms can make you laugh. It's a rare one that can so fully share the sense of joy its cast, writers and crew have in making the show. Here, a paintball war on the campus of Greendale Community College with the coveted prize being early class registration leads to anarchy, backstabbing and the collapse of society. In the process, Community executes a painstaking parody of (and homage to) war movies, Matrix-style action thrillers and postapocalyptic survival tales getting in a brilliant skewering of Glee to boot without sacrificing the characters that give this show about adult-education misfits its heart. (NBC)