Rare is the documentary that actually deserves (let alone gets) a sequel. But given the subject of 1993's The War Room—spinsters helping an unknown Democratic presidential candidate run on the theme of "change versus more of the same"—a follow-up seems au courant. Of course, not everything in the movie feels fresh: The campaign managers get their news every morning via dead-tree newspapers, and James Carville even has something like hair. All of which is readily apparent in The Return of the War Room, airing tonight on the Sundance Channel (and directed by Chris Hegedus and D.A. Pennebaker, who helmed the original). Carville and George Stephanopoulos are again the principal subjects, but both of them have mellowed in the intervening years, settling into careers as talking heads (see a clip below). It's entertaining stuff, and a reminder of how much (and how little) has changed in 16 years. And if you've never seen The War Room, now's your chance: Sundance will screen the original immediately after tonight's show.

9 p.m., the Sundance Channel