Funny you mention the rca's on the box. I actually still use a VCR once in a while, so I have that connected to the box and the VCR to the TV. Funny that that turned out to be an option in case the bypass thing didn't work with the AVR, but that is now a moot point. I set up one of the AVR's optical inputs to use as a TV sound when I need to play the VCR. I just tricked it (the AVR) into believing it is just another audio device (it was none the wiser).
I basically use headphones when in my recliner (when roommate is asleep) using Sony MDR-V6. Have 2 of them. I bought a 2nd set in case they ever stop making them. I verified that they are not Chinese knock-offs too. ha.
Still getting acclimated to my new set-up, so I may have another question or two.
I did just buy a new (used) Klipch RC 62 center to replace my RC 42II. That'll come next week. I will obviously re-set the levels at that time.