I have a 55” Sony Bravia TV with an Xbox One connected to it. Both units are 3 or 4 years old. Over the last month or so I have started having sound issues. When I turn on the tv about half the time I get very loud static. I turn the volume down all the way and that usually “fixes” it. Sometimes it does not. When I switch from cable to the Xbox the sound issue is corrected. Occasionally - while watching TV - the sound will go from normal - to all static. I don’t believe this is a setup issue as the tv/xbox have been working well for years. Any ideas? Thanks in advance!