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.

executive chauffeured services Bradford .. Madison to Airport car

In The News:

Getting virus alerts on your iPhone? Tech expert Kurt “CyberGuy" Knutsson helps you learn how to handle fake scam alerts and boost security.

Tech expert Kurt “CyberGuy" Knutsson says opening emails is safe, but risks arise from interacting with links, attachments or HTML content.

Tech expert Kurt “CyberGuy" Knutsson reveals four signs of compromised Social Security numbers and offers five steps to protect yourself.

Tech expert Kurt “CyberGuy" Knutsson discusses how MAB Robotics' Honey Badger 4.0, a versatile robot, now walks underwater with amphibious skills.

An updated Android trojan called FakeCall hijacks bank calls. Tech expert Kurt “CyberGuy" Knutsson says Android phone manufacturers and Google need to step up their game on security.

The Massimo Modular E9 is a sleek, smart and comfy tiny home in 409 square feet. Tech expert Kurt “CyberGuy" Knutsson takes a closer look at what the future of housing might look like.

Every stock trader should consider a virtual private network to safeguard their trading, according to tech guru Kurt "CyberGuy" Knutsson.

Apple recently announced its new lineup of Macs and rolled out Apple Intelligence, its latest artificial intelligence-powered feature for its products.

A Swiss-engineered robot can climb ladders, showing why it's at the cutting edge of autonomous robotic solutions for harsh industrial settings.

Kurt "CyberGuy" Knutsson presents the cities targeted most by robocalls, why this is happening and what you can do about it to protect your privacy.

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

Kurt "CyberGuy" Knutsson shares tips and suggestions for how to get the best use out of the updated Calendar app available with the latest iOS update.

Your Social Security number, your unique identifier used for many purposes, has likely been leaked on the Dark Web; here are some steps you can take to protect yourself.

Researchers have developed a new technology that creates strong, sticky fibers capable of lifting objects and capturing things from a distance.

Smart rings track the same things that smartwatches do, including steps, sleep and a general overview of your overall health, and they tend have more battery life than smartwatches.

Researchers have developed a robotic finger that can perform routine medical exams like those conducted by doctors, helping to address the growing shortage of trained professionals.

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

Insurance administrative services company Landmark Admin reported that a data breach from a May cyberattack affected over 800,000 people.

Sotheby's will auction the first artwork created by Ai-Da, the world's first robot artist created in 2019 by British gallerist Aidan Meller.

More than 250 million users of the Verizon Messages app will have to switch to another app. Verizon is shutting down Messages in the next month.

Tech expert Kurt “CyberGuy" Knutsson provides a list of 10 celebrities who are the most targeted by deepfake scams, including Tom Hanks.

Tech expert Kurt “CyberGuy" Knutsson discusses how Vast's Haven-1, launching in 2025, transforms space living with human-centric design.

UnitedHealth confirms over 100 million Change Healthcare users had their data stolen. Kurt “CyberGuy" Knutsson reveals what happened and what caused the breach.

Tech expert Kurt “CyberGuy" Knutsson explains how iOS 18 brings new text formatting and animated effects to the Messages app.

Whether you're a social media veteran or novice, Facebook friend request scams are common. Kurt the CyberGuy provides tips to keep your account safe.

EDTV vs HDTV

Personal Technology