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.

Then a few decades back video tape made its debut and it wasn’t long before people were running out to buy video tape players to play tapes that could be rented from rental outlets that were springing up in every city and town across the U.S and Canada. The tape machines and the tapes themselves were finicky at best and could be frustrating to watch, because of malfunctions that seemed to happen in the middle of the best part of a movie.

Cable service and DVDs came along and put all of the video tape rental stores out of business and then satellite service came along to make life hard for the cable service people. Now to top it all off, high definition TV has arrived on the scene with its promoters claiming that it is yet another broad technological step that is going to change the way people enjoy their TV programming, just like all the other technological advancements have done.

So now people are asking just what is high definition TV and whats so different about it? High definition TV programming is a new format that not only involves the picture but also the sound quality of the TV programming that is being watched. You can only get the effects of high definition TV programming by watching it through a high definition TV set. This is because the high definition TV set has twice the number of virticle lines of resolution and pixels in its screen and those are what the picture on the screen is produced with. Twice the number doesn’t equate to twice the precision of the picture though, because it in fact makes for a picture that is six times as precise and the difference is truly astounding.

It means that now a large screened TV can now be watched in a small room with out having to put up with a fuzzy picture, so now apartment and condo dwellers can have the big screened TV that they have always dreamed of. The sound quality is different with high definition TV programming also, because it is digitized surround sound with Dolby noise reduction for a sharper and more distinct CD quality sound that was unavailable from a TV until the advent of high definition TV programming.There is one place where you can see the difference that high definition TV programing makes with your own eyes and ears and that is at your local electronics retailer where thay will have the latest models of high definition TVs playing on their show room floor.




  1. Rick Fredrickson

    I just purchased a new HI Def 47″ 1080P Vizio set . I havent installed it yet , I need to use the space where my present analog TV sits. I have Dishnet cable. My question is , When I hook up this new HI DEF set to the instructions , will the picture automatically come in wide screen , sharper image and better sound , and do i have to contact Dish Net to send Hi DEF Transmission/ Do I need to have any special HI DEF cables? You can see I am not familiar with the latest technology . Thanks for your Reply .

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