How do I manually switch between line-in/TV and nothing on a Sonos Playbar? I need to switch the Sonos from whatever state it is in to TV for my DVR/BluRay/etc. audio. When I shut the TV off, I need to switch Sonos to some other state so that my DVR doesn’t continue to play through the speakers. I tried .line set + play and .tv set with no luck. Any thoughts?