Judy Woodruff of "The NewsHour With Jim Lehrer" (Channel 22 at 6; Channel 26 at 7) conducts an extensive interview with Sen. Hillary Clinton.
Tonight, "Men in Trees" (Channel 7 at 10) returns to the ABC lineup on a new day and time; Cash unexpectedly arrives with a shocking secret, and Sara lets Eric crash with her while he rebuilds his church.
Another 90-minute version of "American Idol" (Channel 5 at 8) features the 10 remaining female contestants.
On a new episode of "Back to You" (Channel 5, 9:30), a news anchor from a rival station asks Kelly out on a date, and Gary is assigned to cover a convention for people who wear animal costumes.
"Law & Order: Criminal Intent" (Channel 4 at 9) veers into kinky territory when the detectives investigate the death of a woman involved in a sexual three-way.
On "Law & Order" (Channel 4 at 10), two high school girls are stranded in the city and only one makes it out alive.
The gals from "America's Next Top Model" (Channel 50 at 8) check into their new apartment and then head to Times Square for an impromptu fashion show; also, new judge Paulina Porizkova offers some honest and harsh criticism to the young hopefuls.
"America's Ballroom Challenge" (Channels 22 and 26 at 8) concludes with the winners of the American Smooth, American Rhythm, International Standard and International Latin competitions battling for the title of best ballroom couple.
"American Masters" (Channel 22 at 10) profiles legendary folk singer Pete Seeger through interviews with Joan Baez, Arlo Guthrie, Bruce Springsteen and Bonnie Raitt; the two-hour documentary features lots of archival footage of Seeger's around-the-world tour from the 1960s.
On Part 1 of a two-part season finale of "Project Runway" (Bravo at 10), the remaining contestants prepare for next week's final judging competition in New York.
The documentary series "Rags to Riches" (VH1 at 11) profiles Macy Gray and her rise to stardom from humble beginnings in Canton, Ohio.
MSNBC's Keith Olbermann appears on "Charlie Rose" (Channel 32 at 11; Channel 26 at midnight).
Billy Ray Cyrus, Miley Cyrus and Brooke Shields are guests on "The Tonight Show With Jay Leno" (Channel 4, 11:35).
Natalie Portman and musical guests Kenna with N.E.R.D. appear on "Late Show With David Letterman" (Channel 9, 11:35).
-- John Maynard