Does anybody know what the maximum lenght of a S-Video cable is? I know they can only be so long because the signal gets too weak after a certain lenght but how long is that? I need abou 20 ft. of ...

i have a radeon w/tv out and it only has s-video out on the back<BR>it came with a s-video to s-video cable and another male RCA to male RCA cable<BR>but my tv or vcr has no s-video connector<BR>so to ...