S-VHS
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High Quality Content by WIKIPEDIA articles! S-VHS (Super VHS) is an improved version of the VHS standard for consumer video cassette recorders. It was introduced by JVC in Japan in April 1987 with the HR-S7000 VCR and certain overseas markets soon afterwards. Like VHS, the S-VHS format uses a "color under" modulation scheme. S-VHS improves luminance resolution by boosting the luminance carrier from 3 MHz to 5.4 MHz. This produces a 60% improvement in (luminance) picture detail, or a horizontal resolution of 420 lines per picture height versus VHS's 240 lines. The often quoted horizontal…mehr

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High Quality Content by WIKIPEDIA articles! S-VHS (Super VHS) is an improved version of the VHS standard for consumer video cassette recorders. It was introduced by JVC in Japan in April 1987 with the HR-S7000 VCR and certain overseas markets soon afterwards. Like VHS, the S-VHS format uses a "color under" modulation scheme. S-VHS improves luminance resolution by boosting the luminance carrier from 3 MHz to 5.4 MHz. This produces a 60% improvement in (luminance) picture detail, or a horizontal resolution of 420 lines per picture height versus VHS's 240 lines. The often quoted horizontal resolution of "over 400" means S-VHS captures greater picture detail than even analog cable broadcast TV, which is limited to about 330 lines. In practice, when time shifting TV programs on S-VHS equipment, the improvement over VHS is quite noticeable.