What options are available? In general, you want pass through, or Dolby Digital.

You’d want to set all devices that feed the TV via HDMI to be Dolby Digital as well. Not Dolby Digital Plus, or Atmos, but it will depend on the device as to what is available. 

If you set up the remote to be IR (InfraRed) rather than any other wireless format, via settings usually on the TV (check your manual for the TV), it should control the Sonos Ray. If you leave it on any setting other than IR, it won’t control the Ray.

Set and listen to both Dolby Digital and PCM, choose whichever one sounds better to you. There is no ‘correct’ answer, it’s all the same data, just slightly different volume levels. Your preference is paramount, not what anyone else ‘tells’ you. 

Sonos support doesn’t work here in these community forums, only very few Sonos moderators. If you want to talk to Sonos support, you need to call them. 

Confused . I guess the ray doesn’t have HDMI so I can only connect tcl to Sonos Ray by optical cord . What is the other cable input on the ray ? Can you suggest a cable to connect this unit to the tv or how I use the optical to connect - step by step 

thank you 

Have you read any of the specifications for your Ray, or the User Guide? Correct: the Ray does not have HDMI - it is optical input only. The guide also shows you the control buttons and the connectors on the rear. It’ll tell you that your mystery input is for Ethernet cable. 
 

If you need step-by-step setup help for your tv: which model tv do you have? 

If I’m not mistaken, the other ‘cable input’ on the Ray is for the other cable that comes with the speaker, a power cable that is used to provide energy to the Ray.