This article covers the NTSC (National Television System Committee) only. Which is the television standards in North America.
One walk around the big box department stores and you will find a number of TV's on display for sale. Known as the “Wall of Eyes” (WOE), it's a display meant to catch your eyes so that you can make a purchase as quickly as possible. Usually, they will have on the description near the TV that will show SDTV or EDTV or HDTV. This is an explanation of the three types of displays.
Here are the types of display.
SDTV – Standard Definition TV – Resolution is 480i
EDTV – Enhanced Definition TV – Resolution is 480i and 480p. Supports wide-screen.
HDTV – High Definition TV – Resolution is 480i, 480p and can vary amongst the different High Definition sources. Supports wide-screen.
The resolution for HDTV varies depending on the manufacturer and the model number so you have to pay close attention to what is advertised and to what is written on the box or manual of the TV. You should always see if you can find the manual of the TV on the Internet or in person at the store and not rely on what the sales person says or what the store display says.
Here are the different resolutions of HDTV. 480i , 480p, 720p, 1080i and 1080p.
What on earth do the numbers and letters mean? It's fairly simple, but a little explanation is needed.
Let's Cover the number portion first. The numbers are the lines of resolution that the television can display.
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