I am pretty much a rookie at this and originally the system was not set up by me. I am wondering if anyone can tell me how to hook up my Apple TV so I can hear it over my Channel Plus system. I hooked up my Apple TV using an HDMI cable to the Denon through the DVR HDMI port. I used RCA cables to hook up from the DVR out on the Denon to the open Channel plus channel. The apple TV works fine on the TV but no sound through the Channel plus. Any suggestions would be appreciated. My apologizes, if I have posted this in the wrong place.