Plus: Answers to all your flat-panel questions
Sony
5. I keep hearing about HDTV. Are all flat panels high definition?
No, but most are. For starters, here's a thing or two you should know about TV resolution: The television images you've come to know and love are called standard definition (SD). They are made up of 300,000 pixels in a 640-by-480 configuration.

Some smaller LCDs (less than 30 inches) still use this arrangement and are therefore not high-definition sets. High-definition TVs must have a screen with a lot more pixels - nearly 1 million in a 1,280- by-720 configuration (which is called 720p).

But it doesn't stop there: Newer, more expensive models have around 2 million pixels, double the resolution of 720p (they're called 1080p TVs). Although eventually all TVs will be 1080p, only people with the latest video-game machines (a few people) and high-definition movie players (almost no one) will get the most out of them now, and it's going to take a while.

You can still enjoy incredible clarity viewing television shows and DVDs with 720p.
Sharp
Sharp
Toshiba
Toshiba
Samsung
Samsung
Panasonic
Panasonic
Sony
Sony
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Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer. Morningstar: © 2018 Morningstar, Inc. All Rights Reserved. Factset: FactSet Research Systems Inc. 2018. All rights reserved. Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor's Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2018 and/or its affiliates.