TV Today

The Ellen DeGeneres Show

(3 p.m., NBC10) - Tim McGraw; Crystal Bowersox performs; Bethenny Frankel.

The Big Bang Theory (8 p.m., CBS3) - The guys decide to enter a costume contest as the Justice League.

Bones (8 p.m., Fox29) - The remains of an Amish youth are found near railroad tracks, and Brennan and Booth discover the youngster was a brilliant pianist.

CSI: Crime Scene Investigation (9 p.m., CBS3) - Langston fights for his life after a serial killer stabs him. Justin Bieber makes his acting debut, playing a troubled teen facing a difficult decision about his only brother.

Funniest Commercials of the Year: 2010 (10 p.m., TBS) - The creative and witty entries included here are among the best of their breed, culled from around the world.

The Daily Show With Jon Stewart (11 p.m., COM) - Politician and author Mike Huckabee (Can't Wait Till Christmas).

Conan (11 p.m., TBS) - Mark Wahlberg; Charles Phoenix; Jenny and Johnny.

The Colbert Report (11:30 p.m., COM) - Author Amy Sedaris and singer-songwriter Paul Simon.

Late Show With David Letterman (11:35 p.m., CBS3) - Actor Matt Damon; Florence & the Machine perform.

Jimmy Kimmel Live (12:06 a.m., 6ABC) - Actor Jeff Bridges; Diddy performs.