Skerdi, I wasn't referring to the cables between the cable box and the TV(although the same idea would apply), rather the ones between the the TV and the player. Presumably the noise is getting to the speakers by way of TV to DVD player.

Sure, try the Belkin device, in case it happens to include an isolation transformer on the cable input/outputs(and passes HDTV).

-----------------------------------

Enjoy the music, not the equipment.