Wednesday on TV

Wipeout (7 p.m., Ch. 4): Contestants face the Blades of Fury, the Gears of Doom and the Onion Ring Hurdles.

America's Got Talent (7 p.m., Ch. 5): A winner will be announced in the two-hour season finale. Can the clogging Whitear sisters from Utah — aka the Fab Five — pull off a shocker and win this thing?

Live from Lincoln Center (7 p.m. Ch. 7): The New York Philharmonic's opening-night gala concert features the debut of new music director Alan Gilbert.

So You Think You Can Dance (7 p.m., Ch. 13): Auditions continue.

Glee (8 p.m., Ch. 13): Josh Groban drops in on Will's new all-male a cappella group — the Acafellas; the Gleeks hire a well-known choreographer.

Dark Blue (8 and 10 p.m., TNT): Carter is the prime suspect in the death of an undercover DEA agent.

Great Performances (9 p.m., Ch. 7): The Vienna Philharmonic performs.