Originally Posted by EscapeVelocity
I thought it was well established by the Laser Disc crowd, that often using late 90s 3D comb filters in CRT television sets by using the Composite output produced a better picture....than using earlier 2D comb filters inside some units and outputing over S-Video cable to the CRT TV sets. Am I wrong?
The key was to try it both ways and see which had the better comb filter, and use that comb filter.
LaserDisc is a composite format meaning the chrominance and luminance signals are mixed prior to recording the signal. So most folks recommend a composite output to a modern TV from a LD player because modern TVs have a better comb filter ( to separate the Y/C) than old-technology LaserDisc players do in their S-Video outputs. (Y/C separation is added to LD players prior to outputting via S-Video.)
SVHS and even VHS records the chrominance and luminance separately (colour under recording) but with plain VHS the separation isn’t nearly as important as with SVHS because with VHS the separation frequency is so close together that it hardly matters. But with S-VHS it makes a pretty big diference.
As for DVD-Video and digital TV – these formats use three separate channels. With Y/C formats like SVHS the blue and red channels are mixed together (ch1 Y, ch2 C) but with DVD-Video and digital TV the blue and red signals are carried via separate channels making three channels of video. (ch1 Y, ch2 B-y, ch3 R-y)