Oprah Winfrey (4 p.m., 6ABC) - Lisa Ling reports on women, erotica and pornography; former adult film star Jenna Jameson; sex columnist Violet Blue.

90210 (8 p.m., CW57) - Navid decides to confront Adrianna about her drug use.

The Biggest Loser (8:30 p.m., NBC10) - Fashion consultant Tim Gunn and hairstylist Tabatha Coffey help give the contestants makeovers.

Frontline (9 p.m., WHYY TV12) - "A Death in Tehran" investigates the life and death of Neda Agha-Soltan, who was killed in June during protests following Iran's elections.

Melrose Place (9 p.m., CW57) - Former Melrose Place regular Heather Locklear returns to her role as WPK owner Amanda Woodward, who fires half the staff.

The Good Wife (10 p.m., CBS3) - Peter needs Alicia to testify in his appeal, just as she is preparing to defend a scientist accused of arson.

The Jay Leno Show (10 p.m., NBC10) - Tyra Banks.

Late Show With David Letterman (11:35 p.m., CBS3) - Penelope Cruz; the Script performs.

The Tonight Show With Conan O'Brien (11:35 p.m., NBC10) - Jane Lynch; 50 Cent performs.

Jimmy Kimmel Live (12:06 a.m., 6ABC) - John Stamos; Emily VanCamp; OneRepublic performs.

The Late Late Show With Craig Ferguson (12:37 a.m., CBS3) - Woody Harrelson; former football player Joe Theismann.

Late Night With Jimmy Fallon (12:37 a.m., NBC10) - Cheech and Chong; Neko Case performs.