Here is my set up: DirecTV HR24-200 Box connected to Sony Bravia 46BX420 TV via HDMI Cable. TV connected to Sony STR-DH520 Receiver via Optical cable (optical out on TV, optical in on receiver). I like to listen to the TV audio even when I have the receiver audio on. I like to have them both on. However, there is a slight delay between the TV Speaker Audio and Receiver Speaker Audio. The difference is so slight that I cannot tell which is behind the picture, but I just want them to be in-sync. I turned the A/V sync feature off on the receiver, and it slightly helped the problem. There is still and echo. Does anyone have a solution to this problem?