Just got my new Onkyo 604 A/V Receiver and am curious about surround sound when watching tv. Does anybody know if I feed the Digital Optical from the tv to the Digital Optical in my reciever this will give me full 5.1 surround sound, or will it just give me good ol' stereo? Or, is it a must to feed the audio out to the receiver's audio in to do this?
Mind you, my tv is via a direct cable coaxial feed that my building supplies. No box.