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Super Video is an interface protocol first introduced by JVC with the very first S-VHS video decks around 20 years ago. S-Video sends an analog video signal on two 75-ohm coaxial cables. One conductor delivers a luminance signal which is a black and white wide-bandwidth television signal. The other delivers a chrominance (color) signal which normally is a composite signal riding ""under"" the luminance information at a frequency below the 3.58MHz ""color burst"" frequency.
Many sources transmit a video signal using this two-part interface. Contrary to common belief, S-Video does not improve resolution. That is a function of the bandwidth of the connection, a commonly accepted ""rule of thumb"" being that you get approximately 90 lines of resolution for each MHz of bandwidth. S-Video does, however, greatly improve color resolution allowing for a tighter and more refined image.
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