It's a Wonderful Life (8 p.m., NBC10) - Small-town guy George Bailey defers one big dream after another to stay home, marry local girl, and run family business. Facing financial ruin, he's pulled from suicidal despair by an angel who shows him what a terrible place the world would be if he'd never lived.

A Christmas Story (8 p.m., TBS) - Peter Billingsley stars in this 1983 comedy, airing nonstop for next 24 hours on the cable channel, as the little boy who yearns to find a Red Ryder BB gun under the Christmas tree. Not just a Christmas story, it's about parents, little brothers, bullies, decoder rings, double dog dares, and most of all, the workings of a youthful mind.