HDTV

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Buying an HDTV can be a monumental moment in your life. For one, you will acquire numerous new friends who will be more than happy to grace you with their presence on every game day. And then there are the family gatherings that you will insist on hosting, just so you can see their faces as they walk into your living room gasping in amazement as they eyeball your 60 inch Widescreen. The jealousy, the envy, the late nights spent bonding with your new television. Yes, all of these things and more can happen for you, but before you take the giant leap there are a few things you should know.

High Definition Television comes in several flavors and truth be told American broadcasters have still not settled on a particular format. So when you purchase an HDTV you want to make sure it is compatible with all the major formats so you won't be left out in that horrible, low resolution land of standard definition television. I'm sure that you have found yourself asking "What the hell is HDTV and why do I need it?" That is a very common question that doesn't seem to be answered very effectively but, with a little patience perhaps we can delve into this complex subject.

The main reason people are so reluctant about buying HDTV is that they really don't understand the technology and quite honestly most people are happy with the picture they have on their current television.

Standard definition tv is what we have all been watching for years, don't be fooled by your digital cable at home, that is standard definition too, its just transmitted digitally. The term used for SDTV is 480i, this simply means that the picture contains 480 lines of resolution and interlaced picture. I imagine you would like me to explain just what resolution and interlaced means. Resolution is akin to a Monet painting; instead of using thousands of dots to form a picture a television uses lines, which are called resolution. A television does not display a single image. Instead it uses a series of horizontal lines that come together to form an image. This is what you would call resolution, and the more lines of resolution the sharper and clearer the picture becomes. If you have ever noticed that on really small television the picture looks much better than on a large television the reason why is that both sizes of TV's use the same amount of resolution to make the picture. When the image is blown up to the size of a large T.V. it can appear quite washed out in comparison to a smaller set. Even worse, typical broadcasting (including digital cable) only utilizes around 50 lines of resolution (same as vhs), so it can appear quite washed out on a big screen. On a side note DVD uses a full 480 lines of resolution and that is the only reason that it appears so much sharper and clearer than vhs or standard television. Buy cheap HDTV term paper

Wow, I know you are excited now, salivating over the thought of everything coming crystal clear (in your living room at least), but read on because there is much more to learn.

If you look on the features list of any HDTV you will see the term "Progressive Scan". You will also find this on higher end models of DVD players. Progressive Scan is good, you want that, but let me guess you want to know why. Well if you insist.

When broadcasters first started sending out Television signals they found that they could save space if they transmitted the signal by eliminating every other frame of video and have the TV fill in what was missing. This is why movies at the theatre always appear "smoother" and more fluid than on TV at home. Progressive scan simply plays back all the frames present in the video source. What exactly does this do for you? It makes movies at home appear much, much clearer. This is typically described as 480p (480 lines of resolution, progressive) it is not High Definition, it is only video done the correct way.

Now that you understand how television is broadcast and what resolution is you need to understand just what High Definition is and how you can watch it in your home with your shiny new impresso-machine, oops I meant HDTV.

In the United States High Definition comes in two major formats. They are 70p and 1080i, if you were paying attention earlier then you should be asking yourself "1080i, I thought interlaced wasn't as good as progressive?" Good observation, but hold on, we'll get to that. Both 70p and 1080i are High Definition and far superior to even DVD in picture quality. But, why two formats? Like most things in life the deciding factor is always money. If you recall what I stated earlier about broadcasters sending television in an interlaced format to save space, then you can pretty much figure out why you have two formats. The purists want 70p because it is most like film. The networks prefer 1080i because they can send more content per signal. The truth is that both signals look stunning and no matter which they decide on it will be marvelous.

When you purchase an HDTV you want to make sure it supports both 70p and 1080i so no matter what format broadcasters decide on you can receive both. Now that you are an expert on HDTV you can run out there and purchase that wonder of modern technology. There is, of course, one more thing you should be aware of.

Hardly any shows are being broadcast in High Definition. A couple of networks broadcast in HD (ABC, CBS) but they only broadcast certain prime-time shows in HD. DirecTV has a few channels like HBO, SHOWTIME, and DISCOVERY in HD, and they expect to add more in the future. Your local cable company most likely has nothing in HD and probably won't for a while, they are always the last to add additional programming. So until the networks get on the ball and start pumping out HD programming you can sit back and watch DVD's in Progressive Scan and dream of what High Definition would be like. Just keep looking at your calendar and count the days until 005 when all us broadcasts will be required to be in HD, well unless congress decides to give them an extension. Oh, I almost forgot. In order to receive HD broadcasts you are going to have to pull those rabbit ears out of the closet, or even better you still have that mammoth antenna on your roof. You will then have to purchase an HDTV receiver because for some reason hardly any HDTV's come with receivers built in. You don't have to worry about getting that fuzzy, shadowed antenna picture you left behind years ago for cable. The HD signal is sent digitally so you either have a great picture or no picture at all, there is no in between grainy, picture you will find with analog.

With all of that said, you should be ready to take on any slick salesman you come across with your savvy new knowledge of HDTV and Broadcasting, and so on. And don't forget to invite me over for game days.

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