This was not easy to find, so I'll post it here for anyone who's looking for it.

NBC Sports Network cycling schedule for 2012:

http://nbcsports.msnbc.com/id/424535...ports-cycling/

TdU pre-race show is this Sunday afternoon at 3 pm Eastern. Stage coverage is 5:00/5:30 (most stages are shown a second time the next day; e.g., Monday is stage 1 at 5:00, Tuesday is stage 1 at 5:00 and stage 2 at 5:30) with a recap show at the end.