I had the same problem. This was my solution. Went to Radio Shack and bought a small plastic box, 2 switches, 4 RCA jacks and frabricated a switch box. Toggle switches turn audio signal off/on from TV's audio "Output" jacks. Needed one extra set of interconnects. Works perfectly. The reason I did it this way was because my cable reception is excellent and I didn't want to take any chances messing up the video signal.
That dreaded hum
Hello all, I hope I'm in the right place and my question is what can I do to get rid of a ground loop hum in my rig. The particulars: I have my audio and video hooked together and when I want to watch dvds I have to disconnect my cable from the wall to eliminate the hum. I know Mondial used to make a box for this problem but that was many moons ago. I thank you in advance and happy Memorial day.