watch espn on the internet has coverage starting at 3:30 am. the bbc feed starts at 4am, also on watch espn. its the most complete coverage you'll get, direct tv or otherwise. here's the link...
Directv is offering 5 channels of coverage but no featured groups as far as I can tell like they've done in other tournaments which is a major disappointment.
They will have a mix channel, espn coverage, holes 1 and 18, holes 9, 10, 11 and international coverage which I assume is BBC.
It all starts at 5 am.
I will definitely be checking it out in the morning, particularly the international coverage. That I think though will be following the likes of Westbrook, McIlroy, et al.