Actually I would recommend against that. Use TV for TV, and PC for PC.
Unless your TV is expecting to receive 0-255 color space through HDMI, you will actually get worse IQ by being in the incorrect mode.
Great post on AVS forum that explains this better than I can.
http://www.avsforum.com/forum/25-hd...rgb-full-range-limited-full.html#post18988254
And here's a link to a file that will show you whether your TV can receive 0-255. Link to this site through IE on the console, and you can make the image full-screen.
http://www.nicolaspeople.com/ch3rokeesblog/?p=16
For those who may not know, we have a pretty good HDTV calibration tool in Settings, which may be JV for folks on this forum, but I highly recommend for most users especially if you're using "out of the box" TV settings or just eyeballing it. Also - turn on Game mode, (or shut off any post-processing your TV does) and turn
Sharpness all the way down (unless you have a test pattern).