All of my devices are connected to a Pioneer Elite receiver, and then only one HDMI to the TV (HDMI 4, which is ARC). My problem is that when I set that input to PC mode, Apple TV and Roku will play with that setting just fine, but as soon as I switch to my Oppo Blu-ray player or the satellite TV box, my settings will automatically switch to regular movie mode. Please help. Again, all devices are using the same HDMI 4 input.