High-definition television

High-definition television (HDTV) provides a resolution that is substantially higher than that of standard-definition television.

HDTV may be transmitted in various formats:

  • 1080p: 1920×1080p: 2,073,600 pixels (~2.07 megapixels) per frame
  • 1080i: 1920×1080i: 1,036,800 pixels (~1.04 MP) per field or 2,073,600 pixels (~2.07 MP) per frame
    • Some countries also use a non-standard CEA resolution, such as 1440×1080i: 777,600 pixels (~0.78 MP) per field or 1,555,200 pixels (~1.56 MP) per frame
  • Some countries also use a non-standard CEA resolution, such as 1440×1080i: 777,600 pixels (~0.78 MP) per field or 1,555,200 pixels (~1.56 MP) per frame
  • 720p: 1280×720p: 921,600 pixels (~0.92 MP) per frame
  • The letter "p" here stands for progressive scan, while "i" indicates interlaced.

    When transmitted at two megapixels per frame, HDTV provides about five times as many pixels as SD (standard-definition television).

    History

    The term high definition once described a series of television systems originating from August 1936; however, these systems were only high definition when compared to earlier systems that were based on mechanical systems with as few as 30 lines of resolution. The ongoing competition between companies and nations to create true "HDTV" spanned the entire 20th century, as each new system became more HD than the last. Ironically, in the beginning of the 21st century, this race has continued with 4k, 5k and current 8K systems.

    Podcasts:

    PLAYLIST TIME:

    Death Row

    by: Pentagram

    Alright!
    Waiting your turn, Just to die
    You wish that someone could be by your side
    You're so afraid to be alone
    You need my help so that you can be strong
    And what will you miss
    when death gives you a kiss
    Live in a room with your solid walls
    You can't get out although you call
    Looking around and what you see
    A thousand souls and there ready to scream
    And what will you miss
    when the death gives you a kiss
    Such a strange moaning in the air
    Can you feel the breeze through your hair
    Rolling around across the ground
    Hoping that soon you will be found yeah
    And what will you miss
    When the death gives you a kiss
    Oh yeah!
    The evil darkness that you can't see through
    Turns you around makes a fool out of you
    Looking behind you can you see the dawn
    Wasted your chance and now your life is gone




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