A new Michael Jackson video, a new conductor for the "Pops," some old Letterman bits and a great old sci-fi movie make for varied choices tonight.
* "The Fresh Prince of Bel-Air" (8 p.m.-8:30 p.m. and 8:30 p.m.-9 p.m., WBAL, Channel 11) -- Both episodes are repeats tonight. But during the commercial breaks, the network plans to screen the new Michael Jackson videos, "Childhood" -- in its television -- premiere -- and "Scream." NBC.
* "Evening At Pops" (8 p.m.-9 p.m., MPT, Channels 22, 67) -- A new conductor takes over the podium in the premiere of a 26th season of concerts by the Boston Pops Orchestra. He's Keith Lockhart, who welcomes guests Mandy Patinkin and Sylvia McNair. Retiring John Williams returns for a tribute, with Doc Severinsen. PBS.
* "Battlefield" (10 p.m.-midnight, MPT, Channels 22, 67) -- Critical conflicts of World War II provide the subject for this new six-part
series. Part 1 examines the Battle of France early in the war, as Germany launched its blitzkrieg. PBS.
* "Late Show With David Letterman" (11:35 p.m.-12:35 a.m., WJZ, Channel 13) -- Tonight marks the beginning of a weeklong "Salute to Stupidity," featuring repeat presentations of memorable "Stupid Pet Tricks" and "Stupid Human Tricks." Harry Connick Jr. is a guest. CBS.
* "The Incredible Shrinking Man" (8 p.m.-9:30 p.m., American Movie Classics) -- The flight from a savage pussycat and the fight with a spider in the basement make this one creepy horror classic. The 1957 thriller, with Grant Williams, also sounds an early warning against our species' messing around with toxic stuff, as the hero begins to shrink from exposure to a mysterious cloud of gas.
* "Mandela's Fight for Freedom" (10 p.m.-11 p.m., The Discovery Channel) -- Actress Alfre Woodard, who once played Winnie Mandela (in "Mandela," with Danny Glover, a 1987 cable film), narrates this three-part documentary, which continues through Wednesday. It documents the remarkable ascension of the African National Congress to democratic power in South Africa.