I need some advice I have surround sound for dvd player but not tv or sky can you tell me how to set it up from sky box to 5.1inch goodsmans surround sound system?and as this is my first surround system the back speakers only come on when like music on film is playing or the action gets exciting is that right?any info be greatfull as its giving me a headache am only a novis after all lol thankyou any help be very helpfull indeed.