I'm having the same issue. I have 2 monitors, one connected through DVI, the other HDMI. The DVI looks perfect and shows as "Digital Display", but the HDMI is all washed out and shows as "Digital Television". How do you change this?
I never got it working properly. I ended up buying a DVDO iScan Duo and that did correct any issues I had with the Intel video (but at a cost obviously). It's also a useful device because it corrects other issues with computer to TV signals like overscan without having to fiddle with the PC video settings.