NBC flashes viewers back to sitcom memories in a pair of its strong Tuesday comedies, while a new character makes an appearance on ABC's hit police show.
* "Wings" (8 p.m.-8:30 p.m., WBAL, Channel 11) -- Viewers need to be up to speed if Joe and Helen (Timothy Daly and Crystal Bernard) are going to consummate this season's engagement with a wedding during the May sweeps. Thus this episode of flashbacks reprises their courtship, as videotaped by Brian (Steven Weber) for a wedding present. NBC.
* "Frontline: Divided Memories" (9 p.m.-11 p.m., MPT, Channels 22, 67) -- Embraced as talk-show and tabloid fodder, the idea that memories of childhood abuse can be repressed well into adulthood complicates court cases. The first of a two-part investigation asks: Is it a valid therapeutic diagnosis? PBS.
* "Frasier" (9 p.m.-9:30 p.m., WBAL, Channel 11) -- Lilith (Bebe Neuwirth) again came back into Frasier's (Kelsey Grammer) life last fall in this funny repeat, the first of a two-parter. JoBeth Williams appears as Frasier's latest love interest. NBC.
* "NYPD Blue" (10 p.m.-11 p.m., WMAR, Channel 2) -- As the squad hunts a gunman who killed six people, including two police officers, viewers of this new episode meet the younger, less emotionally controlled brother of Lt. Fancy (James McDaniel). He's a cop, too, as played by guest star Michael Jai White. ABC.
* "Silence Equals Death: AIDS In The Black Community" (9 p.m.-10:30 p.m., BET) -- Ed Gordon moderates the first of a series of town meetings from the cable network's Washington studios. The show will include a telephone poll on whether the African-American community has done enough to fight AIDS.
* "America's Wilderness: The West" (10 p.m.-11 p.m., The Discovery Channel) -- The middle show of a three-parter illuminating our nation's surviving undeveloped areas, the documentary includes visits to the desert Southwest, the canyon lands of Utah, the Weminuche Wilderness in Colorado and the River of No Return area of Idaho.
* " . . . And Justice for All" (11:30 p.m.-2 a.m., TNT) -- This month, Bruce Willis and Brad Pitt are filming a movie in Baltimore ("Twelve Monkeys"). Back in 1978, Al Pacino and Jack Warden were here for the making of this dark comedy/drama. Best scene: Mr. Warden, as a pistol-packing judge, sitting with the pigeons on the roof of the Baltimore courthouse, high above Calvert Street.