I have mixed feelings about the NBC high def broadcast. First the positives, stunning picture and sound (I get the signal off a motorola High Def box using comcast cable). The opening ceromonies were breathtaking. While watching last night I realized another positive, the high def programming seems to be more "world friendly" what I mean is that the same men's gymnastic qualifying round I watched the previous night, took on a whole new look because we got to see atheletes other than the USA. The same thing during the swimming coverage, it wasn't so US heavy, giving you a much more global feel that I want with the Olympics.
The negatives of course include the day delay so there's no real drama, you already knows what is going to happen. I really can not figure out why the High Def feed isn't the same as NBC's (at least the primetime should sync up).