More talent show than bona fide production, Sweetback Productions' stockingful of hit-or-miss fare would be most at home at a holiday party in an actor's apartment--an impression that the climb to a crow's-nest studio only amplifies. The show's unsentimental takes on the year's darkest days aren't always funny, but the material never gets hung up on its own cynicism, and even the roughest bits are short, if bittersweet. Standout pieces include a blistering account of high-stakes dinner-table warfare, a scene about rediscovering sisterhood in a snowdrift, and Sweetback queen Kelly Anchors performing that Yuletide staple, a way off-color country tune about familial . . . husbandry. Through 12/23: Fri-Sat 9:30 PM, Royal George Theatre Center, 1641 N. Halsted, 312-988-9000, $15.