Having converted from optical to ARC on our sony 65x9000c and a LG Blu-ray home theater system I'm facing some issues and unsure what to do and this is new to me. I've tried to mention whatever I can that I think is pertinent, but I don't know what I don't know.
The issue is if I turn off the TV that turns off the home theater which is fine however next power on from standby the home theater just goes to it's home screen instead of saying ARC and letting the TV do what it was doing (usually Plex or Netflix).
Home theater is set to bitstream, and all works fine if I cold boot or reboot the TV (hold power button on remote).
I've changed the HDMI lead as well.
Any ideas appreciated