The Difference between EDTV and HDTV
Confused by EDTV vs HDTV? We don't blame you. The number of acronyms floating about with regard to digital TV is frightening. What's even more worrying is that very often they are used by people who have little or no knowledge about what they mean. If the person selling you doesn't know the difference between EDTV vs HDTV, how are customers supposed to decide which TV or projector to go for?In our guide below, we've tried to distill the technical info into as few words as possible and make it as straightforward to understand as we can.To properly explain EDTV vs HDTV, we need to step back a bit. Traditional TV has 525 lines of video which are interlaced.
Interlacing just means that every frame of video is split into two fields and each field is shown alternately. Although there are 525 lines in the signal, only 480 lines contain video, so it is sometimes referred to as 480i (480 lines interlaced). This is known as Standard Definition TV, or SDTV. While this has worked well enough for fifty years, as TV sets have got bigger and projectors more popular, the quality deficiencies have become increasingly apparent.The ultimate answer to improving the quality of the image displayed on your TV is HDTV, however, as a step on the road to HDTV, the industry came up with Enhanced Definition TV, or EDTV. This system contains the same 480 lines as SDTV, but they are progressive scan.
Hence EDTV is also known as 480p. Progressive scanning just means that instead of splitting the signal into two fields and showing half the lines at a time, all 480 lines of video are shown at once. This results in a noticeable improvement in the quality of video.The bad news in relation to EDTV vs HDTV is that you need a completely new TV or projector to display both EDTV and HDTV. Most DVD players on the market today are progressive scan, meaning they output EDTV signals, however, in order to view the progressive scan picture in all its glory, you need a TV or projector capable of displaying it and that, unfortunately, means getting a new TV.In terms of content, there is very limited TV content available in HDTV format, and there is still wrangling about the standard for HD DVDs. However, every DVD disc on the market can be displayed in EDTV right now.Bottom line? Pretty much every HDTV projector or TV on the market today will display EDTV as well.
So while there may not seem like a great deal of point in getting a new display for the limited HDTV content that is available today, it is worth it to watch your DVD collection in EDTV, the difference between SDTV and EDTV really is that big..
Kenny Hemphill is the editor and publisher of The HDTV TunerHDTV Magazine Releases The State of HDTV Technology, 2006 Review, and CES Report
Alsea, OR
(ContentDesk) March 29, 2006 -- The much anticipated HDTV Technology Review 2006, by Rodolfo La Maestra, is now available in both a PDF downloadable file for immediate access or a printed version deliverable within days. You might think you have the whole story about HDTV until you thumb through its amazing 207 fact-filled pages, said publisher and HDTV pioneer Dale Cripps. The report is a comprehensive (and searchable) desk reference detailing all existing and near-future HDTV technologies and H/DTV products. It provides a clear explanation of the present and emerging HDTV technologies incorporated in these products,
said co-publisher, Shane Sturgeon, as well as a seasoned assessment of their respective strengths and weaknesses and their likely market successes or failures.
From politics to markets, the La Maestra report delivers unerringly the entire state of the H/DTV industry.Who should have this report? Thats easy, said Cripps, If you...
Hdtv > HDTV Magazine Releases The State of HDTV Technology, 2006 Review, and CES Report
HD-DVD vs Blu-ray: A Primer
High Definition DVD (HD-DVD) vs Blu-ray is shaping up to be a battle to rival the VHS vs Betamax format war of the early eighties. Looking like they've learned nothing from the DVD +/- RW debacle, the companies involved, whether they are in the technology or content distribution industry (or in Sony's case, both), are set to slug it out over the next few years.The prize is the licence fees that will be payable to the format owners when the next generation of high definition DVD players and recorders start shipping in volume. As high definition television becomes increasingly popular, consumers will want a recordable format that has the capacity to hold at least a couple of hours worth of HDTV content. Both Blu-ray and HD-DVD were developed in response to the anticipated need for an HDTV recording medium and provide content whose quality would match the expectations of HDTV-owning customers. Additionally, the film distribution companies will cash-in as they release all the titles currently...
HD-DVD vs Blu-ray: A Primer
Hdtv > HD-DVD vs Blu-ray: A Primer
HDTV Introduction
Are you looking to buy a HDTV? Take a look at our guide to find out what HDTV is about.
1. What does HDTV stand for?
High Definition Television
2. What is HTDV?
It is a new technology and way of filming that has a higher bit depth resolution and gives you a sense or realism while watching the program. Sports are one of the leading industries in high definition programming. To film in HDTV requires a special camera.
3.
How can I tell if my TV is HDTV?
It should say it directly on the box or with the model number. EDTV is not HDTV! There is another side aspect most people overlook due to pricing schemes and that is pixel depth. The cheaper plasmas and LCD have lower clarity or pixels. Therefore, to buy a great HDTV, you need to look for higher pixel resolutions.
4. Why Should I Buy One?
Because you will never go back, it is like night and day.
A true...
HDTV Introduction
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Free DISH Network HDTV Receiver Guide
DISH Network HDTV Receiver
When you subscribe to DISH Network's satellite TV service you get all the equipment you need for satellite TV viewing - a dish and a four-room receiver system. But what if you want to watch your programs in high definition?
Well, you're in luck. You can upgrade your system and get an HDTV receiver for free when you place your order
DISH Network HDTV Receiver Features
DISH Network HDTV receivers have a host of features including:
* An integrated off-air tuner for high-definition and standard over-the-air
reception.
* An electronic program guide with on-screen navigation so you can see what's on satellite TV.
* Parental locks so you can prevent your children from watching inappropriate programs.
* Interactive TV so you can watch six screens at once, and on-demand...
Hdtv > Free DISH Network HDTV Receiver Guide
Blu-ray: A Primer
Blu-ray is an optical disc format which is set to rival HD-DVD (http://www.the-hdtv-tuner.com/high-definition-dvd.html) in the race to be the de-facto standard storage medium for HDTV. The HD-DVD vs Blu-ray battle resembles that between Betamax and VHS and DVD+RW and DVD-RW.Currently, the major Hollywood film studios are split evenly in their support fro Blu-ray and HD-DVD, but most of the electronics industry is currently in the Blu-ray camp. The key difference between Blu-ray disc players and recorders and current optical disc technology is that Blu-ray, as its name suggests, uses a blue-violet laser to read and write data rather than a red one. Blue light has a shorter wavelength than red light, and according to the Blu-ray Disc Association (BDA), which is made up of, amongst others, Sony, Philips, Panasonic, and Pioneer, this means that the laser spot can be focussed with greater precision.Blu-ray discs...
Blu-ray: A Primer
Hdtv > Blu-ray: A Primer