Oprah Winfrey (4-5 p.m., 6ABC) - A woman tells how she escaped a polygamist sect; journalist Lisa Ling investigates the world of polygamy.

Deal or No Deal (8-10 p.m., NBC10) - Host Howie Mandel and two contestants visit South Africa, which has its own version of the game show. As the contestants try to win the $1 million top prize, home viewers can vote for a new model for the next season and win $10,000.

America's Next Top Model (8-9 p.m., CW57) In the season finale, season nine winner Saleisha Stowers plays cheerleader as the three remaining contestants try to shine in a commercial and print ad shoot for CoverGirl makeup.

The Adirondacks (9-11 p.m., WHYY TV12) More than 100,000 people live in New York's Adirondack Park year-round, and about half its six million acres are privately owned. This special offers an armchair tour of the mountain region and those who call it home.

CSI: NY (10-11 p.m., CBS3) - A man believed to be the "cabbie killer" is found dead in this new episode. But Mac and his team won't rest until they determine whether this is the right guy, or is the real killer is still at large.

Late Show With David Letterman (11:35 p.m.-12:35 a.m., CBS3) - Animal expert Jack Hanna; Kid Rock performs.

The Tonight Show With Jay Leno (11:35 p.m.-12:35 a.m., NBC10) - Actor Rainn Wilson; Howard Dean, Democratic National Committee chairman.

Jimmy Kimmel Live (12:05-1:05 a.m., 6ABC) - Actress Evangeline Lilly; actor Ben Barnes; Joe Jackson performs.

The Late Late Show With Craig Ferguson (12:35-1:35 a.m., CBS3) - Actor Tony Danza; actress Maura Tierney.

Late Night With Conan O'Brien (12:35-1:35 a.m., NBC 10) - The Black Keys perform.