Christmas Eve is here. And today is no time for cynicism, irony or nastiness of any sort. Time instead to make something nice to eat, clink your glass with a loved one, and count your blessings with total sincerity. Preparation is over. The moment to let it go and be happy starts now. To help set the mood, we offer twenty of the most joyous, uplifting, totally Christmasey of all Christmas songs known to man.......

Tonight - Friday "NBA Basketball" (PRIME, 5:00 p.m.) Clippers @ Spurs "NBA Basketball" (Fox Sports, 7:30 p.m.) Hawks @ Lakers "Rudolph the Red-Nosed Reindeer" (CBS, 8:00 p.m.) Yup, the original, with Burl Ives -- come on misfits, tune in! "Primetime" (ABC, 9:00 p.m.) Diane Sawyer visits North Korea "Battlestar Galactica" (Sci Fi, 9:00 p.m.) New episode! "Charlie Rose" (PBS, 11:30 p.m.): journalist John F. Burns, Stephen Colbert(!!), billionaire Anthony O'Reilly "The Tonight Show With......