Without a Beam plugged into the HDMI ARC port :
- I can switch audio output from TV speaker to headphones without problem. My selection sticks.
- When I switch audio output from the Beam to TV speakers, or to the headphones, the selection works for one or two seconds, then switches back to the Beam by itself.
I tried as a workaround to plug the Beam into the TV's optical audio output. Problem : no volume control from the TV remote. So not acceptable.