It will be on NBC, at some random time probably. I do know that Shane Hamman is doing the American commentary. At worst, it will all be shown on Eurosport probably in it's entirety at some point and find it's way to youtube. They don't finalize what they show until stuff starts happening.
I imagine they'll host videos on nbc.com and try to keep it off youtube, kind of like they do with their shows now.
NBC doesn't have exclusive broadcast rights. Somebody will just rip a copy of the Chinese or German broadcast and put it up.