hi. i have a bush lcd tv and i just bought a bush home cinima sarrund sound system. i can not for the life of me figure out how to connect the two so i can watch my tv and listen to it in sarround sound.. Am i missing something. do i need an amp or something. i do have a dvd player and i have a virgin cable box but neither of these have any sockets in the baack. only the tv had a number of sockets but no matter how i plug in the cables the only time i get sound is when i turn off the tv lol... Please help