I need help with my HT system. O.K., I have a 61 inch Samsung DLP tv, Onkyo SR601 reciever, Bose Acoustimass 10 series speakers (5 double cubed) with a subwoffer, Panasonic DVD player and a Sony VCR and a Dish Network 811 HD reciever. Alright, my problem is that there is no sound coming to my surround speakers in the rear. I adjust my speakers through the Onkyo reciever and I do get a hissing noise, so the speakers are fine. I was talking to a friend of mine and he told me to turn off the speakers on my tv and I should be fine. I went home and I do not have a way to turn my tv speaker off, so I just turned down the volume to zero. I put a movie in the DVD player, Bourne Identity, and to my amazement, I finally heard my surround speakers. Then the other day I rented three movies, and I couldn't hear any sound from my surround speakers. And they were action movies. I don't know how to fix this problem. I have component cables from my DVD to the tv and also optical cable, for audio, going from my DVD to A/V reciever. I also have DVI cable going from my satellite reciever to the tv and optical cable to the A/V reciever. I also do not hear sound on my surround sound speakers when I am watching a HD channel that is transmitting Dolby 5.1surround sound. How can I fix this, can someone help me?