"A Charlie Brown Christmas" (8 p.m., ABC): The holiday special that made it cool to shower your love on a scrawny Christmas tree is back for its 41st airing. We're talking "A Charlie Brown Christmas,"

"A Charlie Brown Christmas" (8 p.m., ABC): The holiday special that made it cool to shower your love on a scrawny Christmas tree is back for its 41st airing. We're talking "A Charlie Brown Christmas," of course. The Peanuts gang is still a must-see after all these years.
"Big Day" (9 p.m., ABC): Cross "24" with "Father of the Bride" and you've got the general idea behind "Big Day." It's a new sitcom that focuses on one couple's very frantic, havoc-filled wedding day. Marla Sokoloff and Josh Cooke play the star-crossed bride and groom. At least there's no bomb to defuse -- for now.
"My Boys" (10 p.m., TBS): Being a girl who's just one of the guys can pose some romantic challenges. That's the premise of "My Boys," a rather bland cable sitcom that stars Jordana Spiro as a sportswriter who plays poker, downs beers and watches ball games with the dudes. Alas, she has trouble handling the constant curveballs of the dating game.
"Great American Christmas" (9 p.m., USA): One holiday season, six different families and Howie Mandel -- those are the ingredients for this unscripted Christmas movie. Each family celebrates the holidays with a distinctive style, and during the 2005 season, cameras recorded those individual traditions and routines. Mandel narrates.
"Dirty Jobs" (9 p.m., Discovery Channel): For a third season, Mike Rowe takes on the ickiest, slimiest gigs he can find.