I have been recording a few documentary series on Smithsonian Channel and have notice a weird sound weirdness on the commercials of all things. The commercials have almost no sound I only hear a low bass rumble, no music and no dialogue. It is only the commercials, the programs play perfectly with dialogue, music and sound effects. I did notice while fast forwarding a few minutes at a time during commercials that at least some Dish Network commercials play normally. Do I have some setting set wrong? Has anyone else seen this? Not sure if it is the same on live programming, which I haven't sampled from Smithsonian yet. Currently watching The Pacific War in Color.