The minimum performance attributes for HDTV are: 

  • Picture Quality: vertical display resolution of 720p,resulting in 921,600 pixels per frame, or 1080i or higher delivering a picture of over 2,000,000 pixels.
  • Aspect Ratio: capable of displaying a 16:9 image at the minimum resolution level. Should your HD set be a 4:3 natural display, the HD signal will be letter-boxed to a 16:9 aspect ratio, and the set manufacturer will identify the number of active scan lines: 540 in progressive or 810 for interlaced formats.
  • Audio: receives, reproduces, and/or outputs Dolby Digital audio.
  • Tuner: receives all ATSC Table 3 formats and displays them.

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