Series
Lana Turner is the subject of a new Biography (8 p.m. ET/9 PT, A&E). On Friends (8 p.m., NBC), Rachel's sister (guest Reese Witherspoon) tries to seduce Ross out of spite, while Phoebe learns that her twin has been moonlighting as a porn actress. The guys are ordered to attend a sensitivity training seminar on Popular (8 p.m., WB). Frasier (9 p.m., NBC) takes his father to the opera on Valentine's Day; naturally, some new friends think they're gay. A gun battle in the hospital leaves a series regular dead on ER (10 p.m., NBC). 20/20 Downtown (10 p.m., ABC) revisits the story of Brandon Teena, subject of the movie "Boys Don't Cry."
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Sports
Hockey:
Red Wings at Blues (7 p.m., ESPN2)
Flames at Avalanche (10 p.m., ESPN2)
Figure skating:
U.S. Championships, men's short program highlights (after basketball, ESPN)
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Talk
Rosie O'Donnell (syndicated) Lorraine Bracco, Julianna Margulies
David Letterman (CBS) Regis Philbin interviews Bill Cosby, Sarah Jessica Parker
Jay Leno (NBC) Vice President Al Gore
Politically Incorrect (ABC) Tom Arnold, Little Richard
Conan O'Brien (NBC) Julianna Margulies, Suzanne Somers
Craig Kilborn (CBS) Adam Arkin
The Decade in Music: The 20 Biggest Moments of the 2000s
Saw VI: Jigsaw is a Metaphor for Osama Bin Laden
Time's Running Out!