Please bear with me, as I'm a complete novice when it comes to sound set-ups. I had an all-in-one Samsung 5.1 system and the amp/DVD stopped playing DVD's - so I bought a separate Sony Blu-ray and last weekend I bought the Onkyo. Here's the set up from the Onkyo HDMI out - TV HDMI 1 to Blu-ray HDMI 2 to Sky HD+ HDMI3 unassigned Optical 2 (TOSlink) to Sky HD+ I have the HDMI 2 audio set to optical When I check the sound set up on Sky HD channels, it states for the telly input 2.0 ch DD and output 5.0 ch DD. Why is there only 2 channels on the input? As it was an all-in-one, the SW is passive, and not connected. I realise the speakers are not right and will replace them when I get some dosh. However, is this right? Many thanks for any advice.