We have 9 channels from DTV that put out only the subwoofer low sounds. 4 of them only do it when a commercial is on. Otherwise it is normal. He has 180 channels in his Favorite list and we tried them all. I switched the "Scene" on the Yamaha Remote and then they all play. I thought there was a setting in the Yamaha to set the incoming signal to "Auto" and it would adjust to whatever was being sent to it. My son said he could not find it. Is anyone seeing this with their AVR ? Thanks.