These days, kids identify them by the aspect ratio.

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[–] 14 points 3 years ago (1 child)
  • [–] 16 points 3 years ago* (2 children)

    Radio vs TV for Boomers

    B&W vs Color for Gen X

    SD vs HD would be Millenials

    4K vs HD for Zoomers

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  • [–] -1 points 3 years ago (1 child)

    I'm a millennial and I can't really tell the difference between SD and HD. Do you mean like when YouTube switches to 360p instead of 1080?

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