In this thread I talked about sound problems I was having since I got a cable box installed to go along with my HD TV/Blu-ray DVD/home theater speakers setup.
The sound problem begins this way: sound is fine (sometimes for several hours), then all of the sudden it goes tinny and hairy, as if there’s feedback or something, and it gets worse and worse until the sound is unintelligible. The only way to remedy it is to shut down the whole system (all components) and restart.
I was using the ARC sound connection between the TV and speakers, and it was suggested that I try an optical connection between the two.
Did that, and all was well until it happened again even with the optical connection. While the sound was screwed up, I changed the setting from optical to ARC and the problem was still there.
Any further ideas?