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“A TV screen is made up of color dots (take a magnifying glass to one and you’ll see them). These dots are called pixels. The number of horizontal pixels by vertical pixels built into the display is called the native resolution of the display. This is expressed as horizontal x vertical (for example: 1920x1080). The vertical resolution is the same as the number of “lines” on the display (a historical reminder of the days when CRT based TV’s scanned lines from top to bottom). Typical native resolutions you’ll find are:” source...