TV Today

The Ellen DeGeneres Show

(3 p.m., NBC10) - Tori Spelling and Dean McDermott; Nicole Scherzinger, Derek Hough.

How I Met Your Mother (8 p.m., CBS3) - Attending his mother's wedding, Ted is disturbed by her overly affectionate relationship with her guy.

Chuck (8 p.m., NBC10) - Chuck loses the ability to flash data and is left behind when the others go on a mission.

One Tree Hill (8 p.m., CW57) - Brooke lays into Julian over his tryst with Alex.

Rules of Engagement (8:30 p.m., CBS3) - Jeff tries to find time alone after Audrey's girls night out is canceled.

American Experience (9 p.m., WHYY TV12) - Filmmaker Robert Stone traces the origins of the modern environmental movement.

Gossip Girl (9 p.m., CW57) - Serena and Nate decide to explore the boundaries of their friendship.

Intervention (9 p.m., A&E) - Amy's anxiety and low self-esteem lead her into a cycle of anorexia and bulimia.

Law & Order (10 p.m., NBC10) - A key witness in a murder trial is found dead in her hotel.

CSI: Miami (10:01 p.m., CBS3) - A murder victim's spirit won't leave Calleigh alone until she catches his killer.

Late Show With David Letterman (11:35 p.m., CBS3) - Jennifer Lopez; radio hosts Mike Golic and Mike Greenberg; American Idol contestant.

The Tonight Show With Jay Leno (11:35 p.m., NBC10) - Brooke Shields; Phoenix performs.

Jimmy Kimmel Live (12:06 a.m., 6ABC) - Tim Allen; Alex O'Loughlin; Cypress Hill and Tom Morello.

The Late Late Show With Craig Ferguson (12:37 a.m., CBS3) - Brendan Fraser; Amanda Righetti; Brian Scott McFadden.

Late Night With Jimmy Fallon (12:37 a.m., NBC10) - Robert Pattinson; Judah Friedlander; Mario Batali.