In the old school standard AV: Red and White are usually audio channels (Red:Right - White:Left), Yellow is video.
Orange can be coax audio, (both L&R channels in one cable). Before digital (optical) came out, some receivers actually had a coax (orange) jack in the back. Radio Shack sells a splitter if necessary.
In higher resolution systems video is separated into three colored cables: RGB or Red, Green, Blue
called 'component' video. The green cable carries Yellow, the blue cable carries (PB) Blue and the red cable carries Red (PR). And with today's tech, the component signal is carried YCBCR as (
digital video.) cf. http://en.wikipedia.org/wiki/YPbPr
Component 'wire colors' are there just to remind us. If your TV has "Component" input. Try green to green, white to yellow and black to red. Orange to audio (splitting L&R if necessary)..
Also, here is a PS3 link that might help: http://www.ps3hax.net/showthread.php?t=9238
Good luck !
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