
An on-screen display (abbreviated OSD) is an image superimposed on a screen picture, commonly used by modern television sets, VCRs, and DVD players to display information such as volume, channel, and time. ==History== In the past, most adjustments on TV sets were performed with analog controls such as potentiometers and switches. This is still use...
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http://en.wikipedia.org/wiki/On-screen_display

(OSD) The large characters and bar charts of the on-screen display illustrate the entire key operating status of the TV receiver.
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http://www.sony.co.uk/glossary/ShowGlossary.action?site=odw_en_GB§ionty
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