Tonight's most compelling program, on an otherwise uneventful evening, is an episode of the PBS series "The American Experience," examining America's slow reaction to Nazi atrocities during World War II.
* "The Nanny" (8-8:30 p.m., WBAL, Channel 11) -- Guest star Rita Moreno is a bossy gym instructor whose career has spanned two generations: first Fran's, and now Maggie's. Fran Drescher stars. CBS.
* "Beverly Hills, 90210" (8-9 p.m., WBFF, Channel 45) -- Donna and Kelly (Tori Spelling, Jennie Garth) go on a "hunk hunt," trolling for male models for their university's beefcake calendar. Fox.
* "Now" (9-10 p.m., WMAR, Channel 2) -- Bob Costas is scheduled to pick up tonight where he left off when resigning from "Later": conducting a one-on-one celebrity interview. The subject is Chevy Chase, whose remarks about his recent past will be of much more interest than whatever new project he's promoting. As for Mr. Costas, it's a literal step backward from "Later" to "Now." NBC.
* "Melrose Place" (9-10 p.m., WBFF, Channel 45) -- Kristian Alfanso returns as Lauren, the madam who got Sydney (Laura Leighton) introduced to prostitution, but in this case it's Sydney who has the power. Fox.
* "American Experience: 'America and the Holocaust: Deceit and Indifference' " (9-10:30 p.m., WMPT, channels 22 and 67) -- David McCullough, who introduces this 90-minute documentary, calls it one of the most powerful and disturbing films to appear in this series," and he's right. Martin Ostrow, who produced, directed and wrote this installment, reveals his viewpoint in the program's subtitle but gathers the interviews, film footage, newspaper clippings and secret government documents to prove it. To those recently exposed to the horrors of the Holocaust through the film "Schindler's List," and wondering how such a campaign of genocide could have continued over a period of years, this "American Experience," quite precisely, provides the answer. PBS.
* "48 Hours" (10-11 p.m., WBAL, Channel 11) -- With cold temperatures lingering, CBS News sends its "48 Hours" correspondents (most of them, anyway) to warmer climes in search of the ultimate tropical paradise. Nice work if you can get it. CBS.
* "The Fog" (9:50-11:45 p.m., TBS) -- Aside from the clever idea of filming his deadly gaseous villain in reverse, thus allowing its movement to look more eerie, director John Carpenter didn't have the foggiest idea what to do in this 1980 thriller, which stars Adrienne Barbeau and has a quickie performance by former Carpenter scream queen Jamie Lee Curtis (along with her mother, Janet Leigh).