Apple TV Siri/Microphone

Can someone help me understand how to get the microphone to bring up Siri. Tried looking on the setup guides and old forum posts. For some odd reason it woks with one of my Apple TV’s and not another. I tried deleting the device (Apple TV) and reinstalling with no luck.

Is there also someone that can explain the difference between the Apple TV companion and the Apple TV airplay?


I would also like to know if anyone knows the difference between Apple TV companion and Airplay in devices. Which should I be using when adding a new Apple TV to control?

This thread already covers this topic in detail:

As far as any specific issue to your system, @CaliMed that is not something diagnosable in a forum since it is probably related to the model of your ATV or what device(s) you added in Roomie.