What is High Definition TV and How Does it Work

Ever since the invention of the television set, new technological innovations have changed the way we use it, starting with the advent of color TV. In the beginning a new black and white TV cost about what an average household earned in a month, so comparatively speaking it would be the same as if a small black and white TV cost about three or four thousand dollars today. As these technological innovations have made their appearance, so too has the overall cost of using a TV come down.