In Pictures: TV Calibration - six tips for a bette...
The first thing you should do when you get a new TV is turn down the sharpness level. Flat panel televisions are factory pre-set with high sharpness levels to make them stand out in a store display. This often leads to a noticeable halo-like effect on edges which can usually be removed. The best way to fix this is to look at some text on screen and reduce the sharpness until the halo disappears.
In Pictures: TV Calibration - six tips for a better image