I use Windows Media Centre on a 50 inch plasma in my living room. Win7 isn't geared up for it as there's no GUI for viewing from a distance. I set my text size to 200% and that just about does it.
Anyway, after installing Win8, I was pretty pissed off to find Metro was small, with small text and no means (that I could find) to make it larger. So much for Microsoft wanting us all to have WMC in our living room.
ATI Catalyst 12.1 doesnt work in 8, so not much use to me. Didn't get time to work out just how difficult it is to navigate. The few minutes I spent with 8, we're not a nice experience.