SDTV (Standard Definition TV) Information
SDTV, also know as Standard Definition Television , is the basic format for digital TV and it provides pictures and sound superior to the finest analog TV. The picture and sound quality are noticeably better because digital transmissions are free of snow, ghosts, and static noises.
The digital picture quality of SDTV at 480i (640 x 480) resolution is sharper than today's analog TVs.
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The audio is digital, so sound quality is better than on an analog TV, similar to a CD compared to FM radio.
All TV stations are required by law to convert to digital only TV broadcast; however, they may not offer High-Definition (HD) broadcast. Most stations will deliver some HD programming.
The Standard Definition TV picture format is the lowest resolution transmitted by terrestrial (over-the-air) TV stations. The least expensive digital TV sets sold by retailers will most likely have a 480i resolution with a 4:3 picture aspect ratio, so pick your new digital TV very carefully!
In order to receive an enhanced quality picture you will need a TV capable of receiving Enhanced Digital TV
(EDTV)
or High Definition TV
(HDTV)
formats.
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