Technology / Television (TV) / Overscan: The TV approach of bleeding the video signal off the edges of the picture display unit. When converting computer screen to overscan, graphics and text at the edges of the image may be lost. Vertical overscan means that a few lines will go off the visible edges of the TV screen resulting in either the top or bottom of the image being cut off. Horizonal overscan means that some parts of the picture on left and right sides may be cut off because they don't fit to visible TV screen.
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