Yeah this is all pretty garbage. I've looked through reddit and other forums and it seems like this have been going on for years and years with Roku and the fact they don't get on here and comment means it will probably never be fixed. Ill never buy another TV with their UI. From what I've read the problem is it cant cope with high volume. I've tried everything mentioned from unplugging, resetting the button above the HDMI, pressing the buttons on the controller to reset, and finally the * in the menu but my TV doesn't have that audio setting. Many people act like they cant find it but I believe its due to the model of TV.