I am trying to play sound through my receiver for both tv and internet applications. The receiver does not have hdmi but does have optical access. So I hooked up comcast cable through a cable box and Y/Pb/Pr cables (to the tv). I then hooked up an a/v receiver by a direct optical cable from the tv to the receiver. Both IR cables in place. All of this exactly like the instructions detail. The remotes work for everything but turning on and off the units, however, no tv sound. Pandora, netflix etc works but tv does not...out of either the tv speakers or the receiver. When I hook up additional cables from the cable box to the receiver it makes the remote not play everything and then you have to change the input on the receiver as well. Help please, confusing.