I have a Sony KDL-55EX720 TV and a Sony STR-740 AV receiver. I had to turn off HDMI sync control since it conflicts with my Harmony remote setup. As a result, the Audio Return Channel Is defeated. In order to get surround sound from internet movies, I must go through my Sony Blue Ray internet connected player. If I were to connect an optical audio cable from the TV to the receiver, would I have the same 5.1 sound choices with Internet movies from Amazon Prime, etc.? I'm asking here before trying this, because it's a pain to get to the back of my devices in the entertainment center. Thanks in advance for any help.