TONIGHT'S MIGHT-SEE

"Home Alone" (1990), 5 p.m., FX. On a surprisingly weak night for movies, we might as well return to a familiar pleasure. The art of the sight-gag had almost disappeared, when producer-writer John Hughes came up with this idea, perfectly directed by Chris Columbus. Harried parents (John Heard, Catherine O'Hara) go on vacation without a proper head-count. Now their son (Macaulay Culkin, in his delightful stage) must defend the home from two witless crooks (Joe Pesci, Daniel Stern). Columbus wisely leaves room for warmth and Christmastime sentiment. Mostly, however, he pours on the big, broad sight gags.

"TV's All-Time Funniest," 7 p.m., ABC. This new (well, semi-new) two-hour special took a poll to see who are TV's funniest characters. Expect lots of clips.

OF NOTE

"Dreamgirls" (2006), 3:45 p.m., HBO. A Broadway musical was skillfully turned into a movie. There's lots of vibrant, Motown-style music, plus strong characters, perfectly cast. Jennifer Hudson won a well-deserved Academy Award; there's also fine work from Eddie Murphy, Jamie Foxx, Beyoncé, Keith Robinson and more.

"Must Love Dogs" (2005), 6 p.m., Oxygen. Diane Lane and John Cusack star in a pleasantly understated comedy about reluctant romance.

"Battlestar Galactica," 7 p.m., Sci Fi Channel. As the search for Earth continues, a surprising alliance is formed.

"Ghost Whisperer," 7 p.m., CBS. Melinda feels that investigating an old murder case may help her learn what happened to her father.

"Man vs. Wild," 7 p.m., Discovery Channel. This hour may cause you to reconsider your summer plans for a vacation in the Namibian Desert.

"Moonlight," 8 p.m., CBS. Alex tries to rescue the kidnapped grandson of his former war buddy.

"Numb3rs," 9 p.m., CBS. A rap star has been shot. That leads to an investigation of possible embezzlement.