TV Today

The Ellen DeGeneres Show

(3 p.m., NBC10) - Author Kristin Chenoweth (

A Little Bit Wicked

);

American Idol

castoffs Anoop Desai and Lil Rounds.

Oprah Winfrey (4 p.m., 6ABC) - Dr. Oz investigates medical mistakes; Dennis Quaid discusses the error that nearly killed his newborn twins.

NCIS (8 p.m., CBS3) - Gibbs and his team reluctantly put their trust in some very questionable persons in order to stop a criminal who is determined to steal important government secrets.

House (8 p.m., Fox 29) - A woman collapses after a one-night stand with Dr. Remy "Thirteen" Hadley, and House can't resist prying into his female fellow's personal life.

The Mentalist (9 p.m., CBS3) - Several murders are reported at a financial firm's corporate retreat in the Sierra Nevada foothills, and the CBI's investigation uncovers a sordid tale of betrayal and greed.

Late Show With David Letterman (11:35 p.m., CBS3) - Julia Roberts; Black Eyed Peas perform.

The Tonight Show With Conan O'Brien (11:35 p.m., NBC10) - Eddie Murphy; Bonnie Raitt and Taj Mahal perform.

Jimmy Kimmel Live (12:36 a.m., 6ABC) - Paris Hilton; Ken Jeong; Blink-182 performs.

Late Night With Jimmy Fallon (12:37 a.m., NBC10) - Will Ferrell; Kyra Sedgwick; Mos Def performs.