I currently have a SAMSUNG PS51D550 TV and have the Sky HD box connected to it using HDMI and my PC is also connected to it via HDMI. I am looking to purchase the LG HX906PA 5.1Ch 3D Blu-ray Home Cinema System next week hopefully. Would all this go together? And would I still be able to get 5.1 sound when using the computer to play a movie through the TV?