I set up my HD TV to run the sound from the cable through the Blu-Ray home theater speakers for a fuller sound. Have sound output set to “ARC” (no idea what that stands for, but the Panasonic customer service guy told me to set it that way- both TV and Blu-Ray player are Panasonic brand). Both cable box and Blu-Ray player/speakers are connected to TV via HDMI.
Sound will be great for a period of time (different length every time), and then it starts sounding like there’s feedback (sounds “hairy”- I’m not sure how else to describe!) and it gets worse and worse until you can’t make out any of the sounds at all.
I have to shut down the cable box and TV and Blu-Ray player and restart to make it go away. I can’t shut down any one component and fix the problem…