Not All HDTVs Can Keep Up With the Action - New York Times
"Sit for the first time in front of a high-definition TV tuned to a nature program broadcast in HD, and the reaction is almost always the same: a dropping of the jaw. But if you’re a sports fan or serious video gamer, the same set showing the Super Bowl or a car-racing game might elicit a different response: the screen cannot keep up with the action.
Fast movement results in a blur, what the TV industry calls ghosting, because the screen’s ability to refresh the image cannot keep up with the action. So viewers for whom action matters need to pay as much attention to how fast images are processed as to the size of the screen."