Ok, so there’s DTV, SDTV, EDTV, and HDTV? What does all this mean? Did I buy the wrong TV? “What a headache!” you are probably saying to yourself, but don’t worry…I got your back! There is a simple breakdown for all these categories and I will put it down for you in a non-tech, easy to understand way. If you haven’t read my blog on “Analog to Digital Conversion”, you may want to give it a quick look-see just to get the nuts and bolts of exactly what DTV is.
DTV is really just the TV standard which will take place as of June 12, 2009 and encompasses all the other formats. If you wanted to, you could say that there is a good, better, and best way to view the same Digital Television (DTV) signal.
SDTV – Standard Definition Television would be the basic digital television picture quality you would receive with any television hooked up to your cable box, satellite dish, or an HD antenna and decoder box. Even if you have an analog television, you will be watching SDTV.
EDTV – Enhanced Definition Television is a step up. With EDTV you receive more line scanning--480 lines to be exact and every line paints a complete image on your television instead of splitting the information received into two parts like the old analog signal. This simply means your TV is taking the image received and making it better by enhancing the signal it receives and giving you a clearer and more stable picture.
HDTV- High Definition Television offers you the best picture possible. It is like EDTV but it takes it a step further when it comes to your line scanning. It’s all about the lines. The more lines your TV can produce on your screen the more amazing it looks. HDTV can show you a picture with 1080 lines or 720 lines. It can get a bit technical when talking about your line scanning (interlaced/progressively) but what you should be concerned with is that, when it comes to HDTV, the television will figure all that out. No matter how many lines are transmitted in an HD signal the picture quality is virtually the same. Your HDTV will translate that information and give you a beautiful picture.
So whether you have an SDTV, EDTV, OR HDTV, they are all DTV’s and all will produce a digital picture. The differences between each would just be on a scale of good, better, and then the best possible digital picture you can receive.
If you have any questions please don’t hesitate to ask. Or if you have a clarification of a certain point, you’re welcome to post it here.
Best,
Michael
David Gregg - Senior Editor of BehindTheBuy.com
- David Gregg - BehindTheBuy.com's Blogger
- Tampa, Florida, United States
- David combines his creative production skills, persuasive personality, objective advice and easy to follow information while introducing new innovations during his broadcast TV and radio appearances. He is a regular in-studio guest on major market television stations across the country and has been seen nationally on - Fox News Channel's "Fox and Friends", The Daily Buzz, Daytime, CNN, BetterTV, ABC's "The View" and The Discovery Channel. David has also been a featured contributor for over 6 years on CBS News – “The Early Show”. His writing has been seen nationally in Women’s World and Get Married magazines.
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