Good Idea Theater: A new Wife Swap matches a military family and a "trophy wife." Superb. Maybe it means she's teeny and sits on the mantel. (ABC, 8 PM)

I Can Hear Your Brain Rotting From Here: Somebody's getting the boot on a new Big Brother, and if you care at all, you care more than I do. (CBS, 8 PM)

Is Carly Smithson Dead? IS SHE? I Ask You, Internet!: Two hours of American Idol bring you the women's performances. (Fox, 8 PM)

Cycle This, Tyra: America's Next Top Model returns for a tenth "cycle" (it doesn't have seasons, because women have cycles, you see), and there are 35 women going in, and far fewer than that making it into the house. (CW, 8 PM)

How Could Any Child Of Brian Wilson's Have Parenting Issues?: Wendy Wilson (of Wilson Phillips) is the first celebrity to open her home to Supernanny. Somehow, I suspect this will not become a trend.

Don'tcha Wish...I Had Another Joke: The Pussycat Dolls are keeping up the Girlicious thing with an episode called..."Let's Get Girlicious." Don't strain yourself, there, episode-titlers.

Reader Recommendation: It's a match made in heaven, to be honest, when the Mythbusters guys take on the scientific principles advanced by MacGyver. I really hope they do the thing where he stops the acid leak with the chocolate bar. What? (9 PM, Discovery)

Can I Just Start Weeping Openly Now?: Cashmere Mafia takes on the always-timely issue of pet adoption.  Hey, it was on Ellen a mere several months ago. It has to be cool. (ABC, 9 PM)

Aaaand They're Off!: Project Runway's reunion special bows tonight before the four remaining designers (well, the two remaining designers and two quasi-semi-designers) make their way to Bryant Park. (Bravo, 10 PM)