Is the Ray connected via optical to your Samsung TV?

Have you set the Audio out on the TV for each Source?

Yes, Optical cable to Samsung TV.

I disabled the Samsung TV speakers, forcing all audio to Optical Out (Sonos Ray). Yet, when powering on Apple TV, or Xbox or any other media, it is still defaulted to “TV Speakers” and while it plays the audio itself does play through the Sonos Ray, the volume is uncontrollable via any remote until the Audio Output is manually changed.

Seems you should be asking Apple and Samsung the question? The Ray will simply play whatever is sent to it. 

This was a waste of time. I’ll just return the unit.

I shouldn’t have tried to save cash with the Ray. Beam seems to be a far better device overall, especially given the earc connectivity.

HI ​@Chase Peso 

Welcome to the Sonos Community!

Sorry to hear of these issues you are having with your Sonos Ray and your Apple TV.

The problem lies with selecting the Ray as the output device in your Apple TV's settings - this is not the correct thing to do, as it will initiate a direct AirPlay connection to the Ray which is not able to carry a surround sound signal. Instead, the output should be set to the TV - the TV will then make up it’s own mind what to do with the audio (which will be to pass it to the Ray via optical, as should happen).

I hope this helps.