Static noise when connecting MBP to TV

[monomoy4]

I connected my MacBook Pro to my TV (non-HD) using a 3.5 to L/R composite for audio (from headset hole) and an Apple DVI to S-Video/composite for video. I'm using the S-video part of the adapter. I get good sound out of both channels, but when I connect the S-video cable, I immediately get static feedback from the stereo speakers (the L/R composites are connected directly into my stereo receiver and the S-video goes into my TV). any idea why the video connection causes static?

The video quality is fine when it's connected...

 

[geoffreak]

Likely either a bad cable or interference from the video or another cable.

 

[monomoy4]

The S-video cable is good quality (Monster) and relatively new, so I don't think the issue would be there. definitely agree on the interference though.