there's been way too many daily threads asking for help on a basic issue - a person connects their PC to a nice large TV using the typical HDMI connection (to get digital video and audio, and since it's as common to TVs as DVI to monitors), and invariably the image is awful / too large / blurry / etc.
a few folks then comment that when they use a VGA connection to the same TV, things look GREAT. which makes sense. HDMI is tailored for TVs and applies certain settings by default that DVI and VGA don't.
step 1 should ALWAYS be to check for overscan settings - easiest on the TV using the remote and the Menu button
step 2 should be to check if the TV was accidentally set to some zoom setting
step 3 should be to finally play with the TV's sharpening setting, most likely turning it DOWN a bunch to make text look cleaner and less "doubled"
a few folks then comment that when they use a VGA connection to the same TV, things look GREAT. which makes sense. HDMI is tailored for TVs and applies certain settings by default that DVI and VGA don't.
step 1 should ALWAYS be to check for overscan settings - easiest on the TV using the remote and the Menu button
step 2 should be to check if the TV was accidentally set to some zoom setting
step 3 should be to finally play with the TV's sharpening setting, most likely turning it DOWN a bunch to make text look cleaner and less "doubled"