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Posted by Frosty on 04/22/06 14:42
You may not want 0% overscan. Here's why...
When a production company makes a film or TV program then the
cameraman, director and editor all know that nearly all TVs overscan by
at least 3% to 5%. In otherwords they have a safe border round the edge
of the picture where it doesn't matter if the light stand or mic is in
shot; the TV overscan will cover it.
Similarly, things like macrovision pulses (white dashes top left half
of the screen) added to stop copying, head switching noise from
broadcast VTRs at transmission and slight differences in frame size.
All this 'behind the scenes' stuff is hidden by overscan.
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