take a look here if your tv has an DVI connection.
I have been enjoying having my computer and TV interconnected but I would like to improve the image quality on the TV. The TV is HD with either 760P or 1080I (a sharp LCD) but the video output on my card seesm to be only tv quality, fed to the tv with an "S Video" cavle. I am not a big gamer, but I would like to be able to view photo's or mpeg avi dvixx files in better quality. In other words, does anyone know of a reasonablly priced video card with enough video memory for photos etc.