SPOTLIGHT

'In Performance at the White House: Paul McCartney'

7 p.m. on PBS

The Obamas open the White House doors to Sir Paul and guests as McCartney picks up the Library of Congress Gershwin Prize for Popular Song. In addition to McCartney himself, performers (doing Beatles and Wings songs) include Stevie Wonder, Elvis Costello and the Jonas Brothers.

NEW TONIGHT

'Big Brother'

7 p.m. on CBS

Houseguests compete to see who can break this season out of its boring rut. No, sorry, they actually compete for the Power of Veto.

'Top Chef'

8 p.m. on Bravo

The chefs cook lunch for Washington power guests including Sen. Mark Warner, Mika Brzezinski and Joe Scarborough of MSNBC's "Morning Joe" and NBC White House correspondent Savannah Guthrie.

'Plain Jane'

9 p.m. on the CW

Louise Roe is host of a new series dedicated to bringing out the hottie potential in plain women.

'Psych'

9 p.m. on USA

Freddie Prinze Jr. plays Shawn and Gus' old friend Dennis, who asks for help with an alien abduction case.

'Chasing Mummies'

9 p.m. on the History Channel

Hawass uncovers a cache of mummies at Saqqara, an Egyptian necropolis dating to the 26th Dynasty.