I was thrilled with the audio. The mix is very front heavy during moments of non-combat. Some may find the lack of ambiance in these scenes disappointing, but I found it to be very tasteful, with commendable fidelity. The battle sequences are sonically assaulting. Split surrounds are highly aggressive with bullets whizzing by from all directions. Bass is deep, clean, and powerful.
Those who are expecting Saving Private Ryan DTS quality should remember that few Hollywood blockbusters even come close to that audio mix. But, FWIW, Band of Brothers is an incredible audio experience, in terms of both fidelity and creative use of the 5.1 format.
What really impressed me, even more than the audio, was the stunning picture quality. I did not see the original HD broadcast, and while I'm sure it boasted better resolution, I honestly cannot imagine that it looked drastically better than the DVD. I have not yet seen the Attack of the Clones DVD, but with all this talk about how it is hands down the best live-action DVD to date, I am wondering how Band of Brothers might comapre. It's fantastic.