I bought a JVC LED 3D 55 inch tv today. I hooked up my Pioneer receiver (which is older and doesnt have hdmi) via optical cable to my Directv HR24. Why is the sound so far off from the picture? Also if i turn the tv speakers on, the home theater is way off from that also. Is it because of the optical cable? or do i need to upgrade my receiver? I have hdmi going from the HR24 to the tv.