Still having the same issue on my 1070. This issue seems to cross several functions: last night while watching one channel (HBO) via sat.- I had audio, changed the channel (HBOS)- no audio, changed the channel back (HBO) - audio. This happened on another HBO station as well. I finally had to turn the unit off and back on to get audio on HBOS. I've had this issue with Auto-Polling on and off.