Highlights

Highlights

This afternoon, St. Mary's College of Maryland junior Brian Boyle will join actor Chace Crawford and singer Jessica Simpson on "The Ellen DeGeneres Show" (Channel 4 at 2). Boyle, involved in an almost-fatal car crash four years ago, recently competed in the Foster Grant Ironman 70.3 World Championship.

"Monarchy: The Royal Family at Work" (Channels 22, 26 at 8) continues with a trip to Buckingham Palace for Queen Elizabeth II's birthday.

After a final CoverGirl photo shoot, the runway ends for two contestants on the finale of "America's Next Top Model" (Channel 50 at 8) when the winner is crowned.

Fred Willard guest-stars on "Pushing Daisies" (Channel 7 at 8) as a magician who needs Ned's help when his animals die during his act.

Just because Billy's busting a money-laundering operation on "Knight Rider" (Channel 4 at 8) doesn't mean he can't have a bit of romance during the mission.

Comedians on "Shaken Not Stirred" (MyNetworkTV at 9) roast actress Pamela Anderson, who stops by for a chat with D.L. Hughley, Anthony Anderson et al.

About halfway through "Stylista" (Channel 50 at 9), two Washington contestants are still in the game and try to impress judge Anne Slowey with a "memorize guests at a party" challenge.

The team on "Life" (Channel 4 at 9) investigates the death of a "badge bunny," otherwise known as a woman who dates only cops.

"The Real George Washington" (National Geographic at 9) uses forensic techniques to learn more about America's first president, with a trip to his childhood home.

Taking a break from playing goofy characters, Jason Alexander guest-stars as a serial killer on "Criminal Minds" (Channel 9 at 9).

Karen and Lisa battle over Nick on "Dirty Sexy Money" (Channel 7 at 10) while a mysterious cyclist divides residents of the Darling mansion.

"Vanguard: Maxed Out" (Current TV at 10) profiles recent college graduates struggling financially in today's economic meltdown.

Once upon a time in 1940s Annapolis, two boys in segregated schools became friends . . . but things changed 20 years later when one became the mayor and one was jailed, as chronicled on "Pip & Zastrow: An American Friendship" (Channel 22 at 10).

A disorder known as Laron dwarfism, found in a fraction of the Ecuadoran population, is explored on "Nightline" (Channel 7 at 11:35), as it may lead to vital cancer research.

"Late Show With David Letterman" (Channel 9, 11:35) hosts news anchor Katie Couric, actor Dev Patel and Guns N' Roses tribute band Mr. Brownstone.

Talk show host Bill Maher, actress Kristin Chenoweth and musical guest Nickelback are on "The Tonight Show With Jay Leno" (Channel 4, 11:35).

-- Emily Yahr