Is there a limit to how high-definition TVs can get?
Imagine that you have two copies of a movie and two television sets. One copy is on Blu-ray and you pair that with a high-definition television — an HDTV. The other copy is on standard DVD, which you’ll watch on a standard-definition television. You synchronize both videos and watch the results. The difference in image quality between the two sets should be obvious. The HDTV’s picture should look crisper and have colors far more vibrant than the standard counterpart. We’ve reached the peak of video quality — or have we? When we talk about HDTVs, we’re really talking about image resolution. The picture on a television set is composed of millions of tiny dots of light called pixels. Standard-definition televisions have a resolution of 480. That means approximately 480 horizontal lines from the top of the screen to the bottom generate the images you see. High-defini
