I have a VMS1100 STB and I have the audio set to surround. When I connect my STB to my TV I use the HDMI cable. From my TV I then connect to my home theater reciever with the optical cable. My receiver only plays Linear PCM. If I directly connect the optical connection from the STB to the home theater receiver then I receive a DD 5.1 signal. I need to connect through my TV so I can free up a digital connection on my home theater reciever. I have two one optical and one coaxial. The coax is being used by the dvd player. I just bought a Chromecast and I need to have a digital signal out of my TV to connect to the home theater receiver. If I run the STB through the TV via HDMI and then to the home theater receiver I lose my DD 5.1 signal but then I can use the Chromecast with DD 5.1. Is there any way to change or update the STB to change this? When I had Comcast I had no problem with the audio passing through the STB to the TV to the home theater.
Any thoughts?