EDTV vs 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 even if you live in a country or area where HDTV content is limited or non-existent, 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 hdtv - a guide to the kit, the technology and the programming on HDTV.

limousine airport Glendale Heights .. Lockport Chicago limo O’Hare

In The News:

Stay up to date on the latest AI technology advancements and learn about the challenges and opportunities AI presents now and for the future.

Recycling robots are using artificial intelligence to learn how to sort recyclables by recognizing patterns in colors, textures, shapes and logos.

The Reachy 2 robot is designed to be friendly and approachable, inviting natural interaction and is perfect for research, education and experimenting with embodied AI.

Kurt "CyberGuy" Knutsson shares several easy ways to keep your credit cards safe from digital thieves while you're traveling this summer.

Arcturus sets up cameras around the edges of baseball stadiums to capture real-time action and generate a 3D digital clone of the game.

Stay up to date on the latest AI technology advancements and learn about the challenges and opportunities AI presents now and for the future.

The CyberGuy explains why healthcare organizations are vulnerable to hackers after there have been a half dozen data breaches this year.

Developed at two California universities, the innovative technology combines brain-computer interfaces with advanced AI to decode neural activity into audible speech.

Microsoft patches 12 critical flaws, but six have already been exploited by criminals. Kurt “CyberGuy" Knutsson says updating your system is only a short-term fix.

Tech expert Kurt “CyberGuy" Knutsson discusses how robots can milk, feed and clean cows on dairy farms, boosting efficiency and comfort.

Tech expert Kurt “CyberGuy" Knutsson says quantum internet ensures unhackable security and redefines online privacy and speed.

Kawasaki's CORLEO is a hydrogen-powered, AI-driven rideable robot. Tech expert Kurt “CyberGuy" Knutsson reports on this new way of thinking about off-road transportation.

The CyberGuy breaks down five mobile privacy terms that could make a difference when it comes to keeping your personal information safe.

A groundbreaking robot that's like a real-life Wall-E uses advanced artificial intelligence to replicate natural gestures and deliberate actions with striking accuracy.

If not properly managed, Windows Defender Application Control, a security feature with Windows, could be a potential security vulnerability.

Stay up to date on the latest AI technology advancements and learn about the challenges and opportunities AI presents now and for the future.

FlashBot Arm, a semi-humanoid robot, acts more like a human than traditional robots, and you may see it working at a restaurant, healthcare center or hotel.

There are multiple ways to find your missing Android phone after it goes missing. One method involves using a smartwatch to ping your phone.

The NeuroOne OneRF Ablation System is a new device with FDA-cleared technology designed for both diagnosing and treating neurological disorders in one procedure.

The CyberGuy provides tips to protect yourself from criminals who use various methods to make unauthorized transactions using your account information.

New drone technology maps land and water with stunning accuracy, giving researchers and conservationists a new way to understand our planet.

Stay up to date on the latest AI technology advancements and learn about the challenges and opportunities AI presents now and for the future.

X hit with massive data breach with 200 million records leaked, including emails. Tech expert Kurt “CyberGuy" Knutsson offers seven tips to help protect yourself.

Atlas robot by Boston Dynamics amazes tech expert Kurt “CyberGuy" Knutsson with its breakdancing moves.

Tech expert Kurt “CyberGuy" Knutsson talks about how Google kept Android SafetyCore details quiet until it scanned users' photos.

EDTV vs HDTV

Personal Technology