I think I have determined the cause of my sound drop outs, but am going to test some more. It appears that TV sound dropping out doesn't happen if I turn on the 1070 first and let it come online before turning the TV signal source on. In my case TV sound is being fed from a TV into the AUX inputs of the 1070. I haven't yet sprung for a monitor and don't have cable/satellite. I was having a problem with the 1070 and my Pioneer Elite 59AVi, but the sound drop out doesn't seem to be there anymore either. I hope this fixes the problem.