Today on TV

Wipeout (7 p.m., Ch. 4): Former fan favorites return for an all-star episode.

Time Team America (7 p.m., Ch. 7): The scientists search for the remains of a stone fortress built in South Dakota in 1865.

Leverage (7 and 9 p.m., TNT): A clinic is forced to close because it lost money in a Ponzi scheme.

I Survived a Japanese Game Show (8:02 p.m., Ch. 4): The American contestants are humiliated once again.

America's Got Talent (8 p.m., Ch. 5): Mariah Carey is scheduled to perform. She's not actually in the competition. At least I don't think she is. Hmmmm ...

So You Think You Can Dance (8 p.m., Ch. 13): The four remaining contestants perform.

Dark Blue (8 and 10 p.m., TNT): The team targets a Korean gang.

The Philanthropist (9 p.m., Ch. 5): Someone is fraudulently charging charitable donations to Teddy's credit card.