HDTVs are loaded with advanced features that weren’t available in the analog days. Here are a few key features to look for and why. Many of these features go under different names depending on the manufacturer.
Because of the near absence of scan lines and the tiny size of the pixels, you can generally view a larger HDTV from the same distance you would a smaller analog one. A good rule of thumb is to sit no closer than three times
the screen height of the TV.