Okay, feel free to set me straight if this has come up before and it won't work, but I was looking at my theater system and thinking... Until I upgrade my receiver I have to pass optical audio to it. AirPlay (as I understand it) will send a 5.1 digital optical stream. I have an AirPort Express hooked up to my reciever, so shouldn't I be able to set the ATV4's speakers to the Express and send the 5.1 stream to my reciever that way? Could this problem be that easy to fix??