TONIGHT: The Stand Up to Cancer telethon will be airing on, well, basically every major network. Also, we've got new episodes of Suite Life on Deck, Wizards of Waverly Place, Say Yes to the Dress: Atlanta, Flashpoint, and more!

8:00 PM

Stand Up to Cancer Katie Couric, Diane Sawyer and Brian Williams host a fund-raiser for cancer research. Stevie Wonder leads a musical number that includes Natasha Bedingfield, Queen Latifah, Martina McBride, Aaron Neville and Dave Stewart. Also appearing are Christina Applegate, Lance Armstrong, Fran Drescher, Michael C. Hall, Kareem Abdul-Jabbar, Sharon Osbourne, Maura Tierney, Sofia Vergara and Ethan Zohn. (Several Major Networks)
Suite Life on Deck Sean Kingston falls for London when he comes aboard the ship. Meanwhile, Cody and Bailey tour a famous chocolate factory. (Disney)

8:30 PM

Wizards of Waverly Place Alex transforms Harper into Justin's girlfriend to help him get over a broken heart. (Disney)

9:00 PM

Say Yes to the Dress: Atlanta Jennifer, a Bridals By Lori employee, searches for her own wedding gown; Lavina, who's been a bridesmaid 15 times, is finally a bride; Latrina worries that her plus-size figure will keep her from finding the dress of her dreams. (TLC)
Eureka A stolen Global Dynamics project brings Carter, Allison, Jo and Fargo together, and Grant's disappearance turns him into a suspect in the theft. (SyFy)

10:00 PM

Flashpoint The SRU team searches for a girl who was kidnapped from her home shortly after she called 911 to report that an intruder was in her house. (CBS)

Who's on the Late Night Couches Tonight?

Chelsea Lately: Mel B, Arden Myrin, Greg Proops, Rove McManu (E!, Repeat)
The Tonight Show with Jay Leno: Hugh Laurie, Emma Stone, Sarah McLachlan (NBC)
Late Night with Jimmy Fallon: Nathan Lane, Kris, Kourtney & Kim Kardashian, Chris Gethard (NBC)
Late Show with David Letterman: Robin Williams, Usher, Paige Miles (CBS, Repeat)
Jimmy Kimmel Live!: Dax Shepard, Jessica Stroup, Shontelle (ABC)
Late Late Show with Craig Ferguson: Donald Glover, Katey Sagal, Norah Jones (CBS)