My 5 year old 60" rear projection TV is going nuts. There is an intermittent scratchy sound (like a loose wire connection from the input stage) coming from the speakers - it does not matter if the TV is on or off. It happens once every few days. The video section is clear when this sound comes on. When the TV is switched off, we have the same strange sound, same volumn level. This sound also comes out from my power sub that is connected to the signal output of the TV. The sub is now disconnected. This does not happen with my boom box located in the same room. I have Comcast able.
Couldn't figure if its the power company, my cable company or just an old TV going bad. If it is from the power company then my boom box should have this sound at the same time, but it does not. Any ideas?