We have Comcast here. They do broadcast (not really the right word, hmm? Unicast is more appropriate) the PPV movies in 5.1. My experience is that they sound pretty darn good. Maybe not quite AS good, but that might just be my imagination. Plus the signal is a little weak so I'm pushing my AVR close to unity when I watch the movies, or any 5.1 broadcast. To be more succinct, they look and sound pretty darn good, maybe not quite as good as DVD.

"That's some catch, that Catch-22." "It's the best there is." M22ti VP150 EP350 QS8 M3Ti