What's On: Rachel Zoe 101

Tonight, Rachel Zoe's assistant Brad Goreski must handle one of the most stressful events in his bow-tied-and-overbooked career. Elsewhere on the tube, America's Got Talent starts in on its semifinals, Wipeout gets messy, and Joseph Gordon-Levitt illustrates what becomes of the brokenhearted.

The Rachel Zoe Project [Bravo, 10 PM]

Amid Fashion Week, Rachel takes on styling Cameron Diaz and Demi Moore for the Oscars. This threatens the sanctity of Rachel and Rodger's anniversary, and Brad's too stressed to care because he's handling Fashion Week without Taylor for the first time. Should be major.

America's Got Talent [NBC, 9 PM]

The semifinals begin, and the judges start to sort through the 12 remaining acts. This is worth watching for one reason and one reason alone: Michael Grimm.

Wipeout [ABC, 8 PM]

Tonight's ridiculous obstacles include Bruiseball, Organ Grinder, Smack Wall, and a bunch of flying condiments. The episode's subtitle is "An Average Night in West Hollywood."

500 Days of Summer [Cinemax, 10 PM]

In this quirky romcom, a greeting card writer (Joseph Gordon-Levitt) meets who he thinks is the girl of his dreams (an infuriatingly fickle waif played by Zooey Deschanel) and finds himself trying to recover his joie de vivre after she breaks up with him. If you can tolerate the movie's closing pun, you'll leave with a smile on your face.