I have purchased a Samsung Bluray player and home theater system, model HT-FM45. I set the bluray player up with my Samsung HD TV, it sounds nice and plays movies clearly. What I want to do is connect the home theater speakers to play sound from my xbox and dish channels. I select the "External Speakers" from the tv menu but no sound come out. The blueray player is connected by HDMI and has Anynet+. Anything I am doing wrong?