So I think I tried everything already, but you guys here are geniuses!
I have a new (to me) 26 Sony Bravia (KDL26S3000) LCD with 2 HDMI ports to replace the smaller one in my office. The TV in my office is only for streaming on the Roku 1 while working, and sometimes to play the VGA cabled Dreamcast and my Retron 1 HD.
There is an issue, the Retron 1 HD has no sound. I tried a new cable, both HDMI slots and even hooked it up to 2 other TVs to make sure it worked - it does but not on the Sony. After days of playing with settings, searching the web I am at a loss. Every other HDMI that I throw at it (Roku 1, Fire Stick, etc) works with sound in all HDMI slots but the Retron HD won't produce sound via HDMI and I didn't buy it to play using RCA cables.
Any suggestions? Even the Sony tech support guy on the phone gave up on this.