Hdtv Vs. Analog Television

If you are planning to switch from analog television to high definition in 2009 instead of buying an analog to digital converter box, here are some of the most noticeable image related differences of High definition television versus analog Tv.

First the most noticeable advantage of HDTV is this technology’s ability to display breath taking sharp images regardless of overall screen size as opposed to old analog television sets in which image quality suffered as screen size increased. Huge analog television sets had a strong tendency to look blurred as opposed to the higher quality and bright color images displayed in a new HDTV set . This advantage over old analog technology is made possible by HDTV technology enabled television sets higher resolution and as a consequence higher pixel count. The less pixels a television set is able to display the worst the image displays as size increases .

An analog television set has a resolution that can be stated equivalent to about 640×480 pixels for a total of 307,200 pixels. This amount of pixels are displayed in every analog television set of this resolution regardless of television size. The main difference between sharpness and television set size is attributed to the fact that pixels will drastically increase in size as television set screen size increases. Imagine the difference in pixel size between a 13 inch analog tv set and a 32 inch analog tv set if both television sets feature the same amount of pixels. If we compare with an HDTV set with an LCD screen for example, that displays an image at 1280 x 720 interlaced commonly known as 720p basically the lowest resolution rate available for an High Definition television set, the difference in pixel amounts is huge 921,600 compared to 307,200. If we were to extract the extra pixels that are attributed to the widescreen aspect ratio of HDTVs and be left with only the pixels that are present in an area of the HDTV set that was exactly the same as the one in an analog television set the resulting pixel count will still be fairly huge provided that screen height dimensions remained the same . In other words smaller pixels offer grater image quality and even lowest resolution on an HDTV offers more than double the image quality of a regular analog set.