I have a Dish VIP 612 receiver in my RV. It is connected to a Magnavox TV and a Sony surround sound system via HDMI and optical audio cable. When I fast forward or rewind a DVR recording, I will lose sound for about 5 seconds. Sometimes I will lose it completely and am forced to power down/up the receiver. I called your tech support several months ago, but the tech only suggested I swap out the optical audio cable, which I did. This did nothing.
I have a Hopper receiver inside my home. Today I replaced my home TV with a Samsung. It too is connected to a Sony surround sound system in the same manner. I am now experiencing the same sound issues with my new TV. What is causing this? Please help!