How can I use Alexa to turn on/off my Samsung Sound Bar on the TCL Roku TV ?
Sorry, but you can't.
View solution in original post
Hmm - how about this? https://www.youtube.com/watch?v=AXf09IlhFW8 - SmartThings App -
That video has the alexa device controlling the soundbar directly, without the tv in the equation. So it has nothing to do with roku, reason roku can't control outboard device via alexa.