What's On: To the Moon, Padma!

Let's talk about how wacky tonight's Top Chef challenge is: It's so bizarre that the show may lose the dignity it accrued by winning the Best Reality Competition Series Emmy. You might even call the challenge "out of this world." And you would be correct. Literally.

Top Chef [Bravo, 10 PM]

The chefs create space food. Yeah, like outer space. Buzz Aldrin makes an appearance. I assume this was Padma's idea.

Big Brother [CBS, 8 PM]

Lane has to decide tonight whether he is going to side with his alliance or his forbidden love Britney, who is engaged. Dramz. In tonight's Power of Veto episode, hopefully he will send Enzo or Hayden packing.

MasterChef [Fox, 8 PM]

Contestants cater a high-end wedding and make the snafu of the century when the entree goes missing. Gordon Ramsay will have nothing growly to say about that, I'm sure.

First Blood [AMC, 8 PM]

Rambo is born in this Sylvester Stallone joint about a Green Beret who squares off against police and the National Guard. Look out for David Caruso and Brian Dennehy as less scarily shouldered characters.