I bought a Panasonic BD85 BlueRay player about a month ago and connected it to my Toshiba 46XV645U using an AmazonBasics High-Speed HDMI Cable. All was well and fine until I started watching very long movies (>2hrs.). After about two hours the audio goes crazy but the picture is fine. If I shut everything off for about 2 minutes the problem goes away. This problem has presented itself during BlueRay movies and also while watching streaming movies. Any ideas?