The Ellen DeGeneres Show

(3 p.m., NBC10) - Josh Duhamel.

The Oprah Winfrey Show (4 p.m., 6ABC) - A daughter shares videos made for her by cancer-stricken mother.

The Big Bang Theory (8 p.m., CBS3) - Bernadette gets her doctorate, which means Howard is the only one in the group without one.

The Mentalist (9 p.m., CBS3) - The identity of Red John's mole inside the CBI is revealed, and Patrick faces his nemesis.

Grey's Anatomy (9 p.m., 6ABC) - Meredith's dishonesty in the clinical trial is revealed.

Private Practice (10:01 p.m., 6ABC) - The doctors decide whether to expose the flaws in the practice and risk some terminations or dissolve it and go their separate ways.

Parks and Recreation (10:30 p.m., NBC10) - Leslie and her colleagues arrange a memorial service for a friend.

The Daily Show With Jon Stewart (11 p.m., COM) - EPA Administrator Lisa P. Jackson.

Conan (11 p.m., TBS) - Will Ferrell; Paul Bettany; James Blunt performs.

The Colbert Report (11:31 p.m., COM) - Kareem Abdul-Jabbar.

Late Show With David Letterman (11:35 p.m., CBS3) - Kelly Ripa; Jennifer Lawrence.

The Tonight Show With Jay Leno (11:35 p.m., NBC10) - Jack Black; Mike Huckabee; Parachute performs.

Jimmy Kimmel Live (Midnight, 6ABC) - Albert Brooks; author Chaz Bono; Rammstein performs.

Lopez Tonight (Midnight, TBS) - Rosario Dawson; Prince performs.

The Late Late Show With Craig Ferguson (12:37 a.m., CBS3) - Tony Shalhoub; author Sloane Crosley.

Late Night With Jimmy Fallon (12:37 a.m., NBC10) - Ellen Barkin; Chris Hardwick.