by E. Kerns

Created on: May 13, 2008   Last Updated: May 17, 2008

High-definition television, being more popularly referred to as HDTV, has rapidly risen in ranks in the fascinating world of technology. Whether or not you are knowledgeable on the currently popular brands or models, one thing remains evidently clear - HD holds the technology market for now.

In the past, we simply paid a visit to our nearest television retailer and chose a product that matched our decor, or offered a larger viewing screen. Now it can seem as if your life nearly depends on the decision you make in reference to which model you are going to purchase. Perhaps understanding some of the key words and labels before you shop for your television would assist you in your endeavor into the realm of high definition technology.

We begin with the name. You know the meaning of HDTV, as previously explained, what next? HD is a broadcasting system in digital form that is comprised of a higher resolution ratio when compared to the former television systems. Having been introduced in the United States in the 90's, HDTV requires less bandwidth when the proper amount of video compression is made available. This results in "digital" broadcasting.

Previously, the most generally used format for viewing television was with the use of CRT (cathode ray tube) sets. These are comprised of radio waves that vary constantly which are translated into sound and pictures by the television receiving these radio waves. Analog signals are carried over air, by satellite, or through cables connected to the television. When using a regular television, the digital signals are converted to analog signals.

The mechanics of the televisions are that CRT sets accept signals from broadcasters that display approximately 480 visible lines of pixels. This translates as lower quality due to the electron gun painting a mere 50% of the lines during each pass of the screen. The quality is further lowered when the signal must be converted to analog format from video format. Because HD television has been created to display approximately ten times the number of pixels an analog TV displays, this heightens the level of quality. With such a high number of pixels being displayed, the result is a clearer and more defined picture.

HD television also rates a much higher aspect ratio when compared to the standard televisions being produced. Standard is sized by a 4:3 aspect ration, meaning it is four units wide and three units high. The HDTV boasts a 16:9 ratio which is highly similar to a movie screen, making it the better quality choice for your viewing experience.

Now that you've learned the basics, venture out and put your new found knowledge to the test. Find the latest models and see what the technology market has to offer.

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