I am trying to hook up my new surround sound system with my sub. The problem is i don't know where to go from here. My tv has 2 left and 2 right speaker outputs. I hooked these 4 outputs to my recievers 4 inputs. My reciever also has a Center speaker, and subwoofer input. The problem is my tv doesn't have a center speaker or subwoofer output!!! What do i do? Thanks.