I'm watching Bab5.1 on my home computer. DVD->PowerDVD->Matrox. The CGI is still razor-sharp, but now has a field width I'm guessing twice what I got on the TV. Yes, I'm actually seeing MUCH more on the left and right sides. Menus too. So my TV was cropping a heck of a lot on each side.
Filmed video is fuzzier, and has obvious pulldown judder, including combined near frames when I pause.