I have HDMI switch. I have my cable in HDMI port 1, Blueray/DVD in port 2, Apple TV in 3. The speakers are through the Blueray player. When I use port 3 it has the sound from the cable not the apple tv. Any help is much appreciated. I should have added that the Blueray uses component cables to the TV for sound. I expect that is my issue but I don't know how to resolve things.