I am getting an Onkyo receiver in the mail tomorrow. I ordered it so I can play tv sound through speakers that I will be hooking up to the receiver. The tv I have does not have rca jacks. It only has a headphone out port, digital audio coaxial out(not toslink), and apparently the hdmi 1 port can be used for audio out. The receiver only has rca inputs. What would be the best way to connect tv audio to the receiver?