Havin an issue at my parents house. They have a yamaha rxv667. Comcast hook up to hdmi 2 and DVD player to hdmi 1. When switching from hdmi 2 to hdmi 1 everything changes over and you can watch a DVD. When you go to switch the receiver back to hdmi 2 to watch comcast the receiver switches to hdmi 2, you hear the audio from comcast but the TV somehow changes the source and goes to like AV1 with no picture. I have to manually hit source on the Samsung TV and put it back to hdmi. Why is this happening?
