External soundbar not playing nice with TV

Apple TV Samsung TV SONOS Soundbar + S1 stereo speakers

Apple TV Preferences Sound output = SONOS soundbar

Samsung Preferences Sound Output = SONOS HDMI eArc soundbar

  1. start with Apple TV movies and as I switch from movie to movie, sound comes out stereo as it should

  2. however when I switch to Netflix or YouTube TV with stereo content, sound comes out mono .. until I manually change the ATV Preferences to stereo.

As ong as I stay with Netflix content, stereo output. But change to YouRube TV or ATV, it automatically changes to mono.

?????

This is nothing to do with third-party developers (i.e. not Apple employees) who write apps for Apple's platforms, which is what these forums are for.

You're in the wrong place.

Your question is more of a product support one, so I'd suggest you ask it over at the Apple Support Forums. Thanks.

Thanks. Have transferred it as you recommended. Please erase here. Again, thanks.