Hello everyone, I'm hoping to understand what the problem I have is. I have a PlayStation 4 without the optical digital out so it is connected to my receiver by hdmi only. On the front of the receiver it has a logo for Dolby True HD. I have a Dolby digital 5.1 set up. I put in a blu Ray of The Dark Knight which says Dolby True HD on the back of the case. However I'm only getting sound from the front. How do I get surround sound from my ps4 and please explain it slowly because I am a complete layperson lol. I attach pictures of what I see. Would very much appreciate some hand holding and walk through. Thanks.