After the episode is aired on television, what time does it get posted on nbc.com??

I need to know because I'd like to watch the season premiere ASAP, but I have to watch the Grey's Anatomy premiere too, which is at the same time.

Heh.

Or the other way around..I could watch The Office on TV and Grey's online..I believe it goes on abc.com at 2:00 AM for Grey's?