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HDTV (High-definition television) is a collection of digital high-definition video formats that have 16:9 (widescreen) aspect ratio. HDTV generally refers to 1080i or 720p images. HDTV supports Dolby Digital surround sound (AC-3). HDTV are the highest resolutions in the new set of digital television standards.

  • 1080i - HDTV image; 1,080 vertical lines by 1,920 horizontal pixels wide, displayed in interlaced format.
  • 1080p - HDTV image; 1,080 vertical lines by 1,920 horizontal pixels wide, displayed in progressive format.
  • 720p - HDTV image; 720 vertical lines by 1,280 horizontal pixels wide, displayed in progressive format.

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