High-definition television

  • high-definition television (often shortened to high-definition and hd or high definition) describes a television system providing an image resolution of substantially higher resolution than the previous generation of technology. the term has been used since 1936,[1] but in modern times refers to the generation following standard-definition television (sdtv), often abbreviated to hdtv or hd-tv. it is the current standard video format used in most broadcasts: terrestrial broadcast television, cable television, satellite television, blu-ray discs, and streaming video. the only difference is the picture quality of sd and hd. prior to this, respective sd versions of the channels transmits in 4:3 video with letterbox on it, making the image appears smaller.

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High-definition television (often shortened to High-Definition and HD or High Definition) describes a television system providing an image resolution of substantially higher resolution than the previous generation of technology. The term has been used since 1936,[1] but in modern times refers to the generation following standard-definition television (SDTV), often abbreviated to HDTV or HD-TV. It is the current standard video format used in most broadcasts: terrestrial broadcast television, cable television, satellite television, Blu-ray discs, and streaming video. The only difference is the picture quality of SD and HD. Prior to this, respective SD versions of the channels transmits in 4:3 video with letterbox on it, making the image appears smaller.