I have just got a yamaha 575 and connected the hdmi out it to my d8000 tv. I connected hdmi 1 to my sky hd box - 2 is waiting for my ps3 and 3 connected to a samsung DVD . All seems to work well but I'm not sure about a couple of things 1 will the sky box output dd 5.1 in this configuration or do I need optical outs 2 when I enter smart hub on the tv the sound does not output through the amp any ideas on how to make this work as I'm using the plex app to stream movies etc. ( or will I have to purchase a roku or similar to get dd5.1 and Dts ?) Apologies if this has been answered elsewhere.