TONIGHT: March Madness kicks into high gear during the Duke-Butler Championship game, Kate Gossellin continues her reign of mediocrity on DWTS, and Christian Siriano reminds us just how fierce he really is during his new Bravo TV special.

8:00 PM

Dancing With The Stars The top 10 contestants perform and Kate Gosselin performs a dance inspired by her tabloid troubles. (ABC)
Chuck Chuck and his fellow spies regroup to go after the operative who killed Shaw's wife. (NBC)
24 President Taylor undergoes a game-changing setback and President Hassan shocks everyone with a surprising decision. (FOX)
Life Unexpected It's road trip time when Cate, Lux and Baze go out to find Cate's father. (The CW)
Little People, Big World Zach and Jeremy head to Europe. (TLC)
10 Things I Hate About You Bianca gets shunned for dating Joey, Patrick goes to dinner at the Stratford's. (ABC Family)

9:00 PM

NCAA Final: Duke vs. Butler Cinderella story Butler University take on NCAA Powerhouse Duke to battle for the national championship. (CBS)
Gossip Girl Serena throws Nate a surprise party, Blair and Chuck face a difficult decision. (The CW)
Trauma Rabbit and Marisa are quarantined after exposure to meningitis. (NBC)
Larry King Live Larry sits down with actress/activist Jane Fonda. (CNN)
Intervention A crack-addicted former boxer fights for his life. (A&E)

10:00 PM

Christian Siriano: Having A Moment Cameras follow the Project Runway winner as he prepares for his third runway show at New York Fashion Week. (Bravo)
Damages Patty makes a deal with the DA's office after her star-witness is arrested. (F/X)
Nurse Jackie Jackie finds solace in a line of prescription medications. (Showtime)
Anthony Bourdain: No Reservations Tony teaches viewers techniques chefs everywhere—from street vendors to fancy restaurants—use to prepare their food. (Travel)
Castle Castle and Beckett investigate the murder of a museum curator. (ABC)
Tori and Dean: Home Sweet Hollywood The family head out on a road trip to visit their friend Patsy. (Oxygen)

10:30 PM

United States of Tara Tara faces trouble when her alters come back in full-force. (Showtime)

Who's on the Late Night Couches Tonight?

The Daily Show: Reza Aslan (Comedy Central)
The Colbert Report: Dean Kamen (Comedy Central)
Jimmy Kimmel Live: Kellan Lutz, Brooke Burke, She & Him (ABC)
Lopez Tonight: John Corbett, Nicole Sherzinger, Steve Lyons, Mark Littell (TBS)
Chelsea Lately Jennifer Love Hewitt (E!)
The Tonight Show with Jay Leno: Randy Jackson, Little People, Big World's Matthew and Amy Roloff (NBC)
Late Night with Jimmy Fallon: Bob Costas, The Pacific's James Badge Dale, animal trainer Jeff Musial, Shelby Lynne and Peter Wolf (NBC)
Last Call with Carson Daly Joel David Moore, stunt woman Luci Romberg, Arctic Monkeys (NBC)
Late Show with David Letterman: Jack Hanna, The Swell Session (CBS)
Late Late Show with Craig Ferguson: Kristen Bell, Mythbusters' Grant Imahara and Ferguson's new robot sidekick, Geoff Peterson (CBS)