TONIGHT: We've got a new Top Chef: DC and a Mythbusters special about car myths that promises to be fascinating. Plus, the cast of Eclipse join Jimmy Kimmel for a special 10 pm show.

8:00 PM

So You Think You Can Dance The Top 10 perform. (FOX)
America's Orchestra: Celebrating 125 Years of the Boston Pops In case you want to bring a little light music to your Wednesday night. (PBS)

9:00 PM

Top Chef: DC The chefs prepare health conscious food as part of the First Lady's initiative against childhood obesity. White House chef Sam Kass guest judges. (BRAVO)
Mythbusters Common myths about cars are tested. (DSC)
I Didn't Know I Was Pregnant A nursing student discovers she is pregnant after requiring an emergency appendectomy. (TLC)
America's Got Talent Another day, another joke about how this show's preliminary auditions have been going on for a year. (NBC)

10:00 PM

Jimmy Kimmel Live's Twilight Saga: Total Eclipse of the Heart The cast of the upcoming Twilight movie Eclipse join Jimmy for some light-hearted banter. (ABC)
Work of Art The artists must create covers for works of literature. (BRAVO)
Peep Show It's Mark's wedding day, but will he make it to the church? (BBC)
Toddlers and Tiaras Something called "an America's Best" Pageant is featured. America's Best What though? (TLC)

Who's on the Late Night Couches Tonight?

The Daily Show: Dr. Connie Mariano (Comedy Central)
The Colbert Report: Tim Westergren (Comedy Central)
Jimmy Kimmel Live: Chris Rock, Ashley Greene, Minus the Bear (ABC)
Lopez Tonight: Bill Cosby, Blair Underwood, Kid 'n Play (TBS)
Chelsea Lately Matt Braunger, Moshe Kasher, Guy Branum (E!)
The Tonight Show with Jay Leno: Jeremy Piven, Louis C.K., Drake (NBC)
Late Night with Jimmy Fallon: Heidi Klum, Joshua Topolsky, Macy Gray (NBC)
Late Show with David Letterman: Adam Sandler, Bettye LaVette (CBS)
Late Late Show with Craig Ferguson: Julia Ormond, Jose Andres (CBS)