Hi, I have just installed a Denon home cinema system. Ive connected it to my DVD and my Sky+ via optical outlets. My DVD works fine with it but my AV receiver will pick up a digital inpur from the Sky+ box. I was wondering, do sky transmit signals so you can listen through a home cinema such as box office films or do they no do this. I assumed they did otherwise why have an optical outlet. I had to change a few settings on my DVD player to get it working, but theres nothing on the Sky+ menus that suggest any settings need to be adjusted. Any advice is appreciated. Thanks.