Would this be able to rival the picture quality of HD satellite tv etc? I'd also be concerned that (in the UK at least) far too many people haven't got a decen

Would this be able to rival the picture quality of HD satellite tv etc? I'd also be concerned that (in the UK at least) far too many people haven't got a decent enough broadband connection to support this kind of streaming. If the uptake is big then it'll hammer the networks, surely. Try downloading something at 6pm on a weekday using one of the big ISPs. Imagine half the country streaming HD video at once.