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Last modified: Wednesday, November 09, 2005 

Short for Enhanced Definition Television, EDTV is a common name for a particular subset of the DTV (Digital Television) standards, but is considered to be specifically a part of the HDTV format. EDTV offers advancements over SDTV, but not near the quality and performance of HDTV. On a large display screen, EDTV only simulates HDTV viewing quality. EDTV operates as 480p (where 480 represents the vertical resolution and p represents progressive scan). To take advantage of the 480p standard, you must use a video source that outputs that signal (i.e. a DVD player) and the display must be able to read the 480p input signal. EDTV also offers the benefits of Dolby digital surround sound.

* EDTV Minimum Performance Attributes:

  • Receiver: Receives ATSC terrestrial digital transmissions and decodes all ATSC Table 3 video formats
  • Display Scanning Format: Has active vertical scanning lines of 480 progressive (480p) or higher
  • Aspect Ratio: None Specified
  • Audio: Receives and reproduces, and/or outputs Dolby Digital audio

(* Adapted from Digital Connection)

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Related Links

Plasma TV Buying Guide 
We've all heard certain plasma displays described as "enhanced" definition displays. "Enhanced" certainly makes these plasma TVs sound good … desirable even. Lucky for us there's more to this than just clever marketing. Enhanced-definition (or ED) plasma TVs are actually better than conventional, tube-type TVs -- not just slimmer and wider.

related categories

Digital Television

Home Entertainment


related terms





progressive scan


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