For display message on the screen you can use AndroidTV notify component https://www.home-assistant.io/components/notify.nfandroidtv/
Thank you so much. Great.
What is your recommendation if I want to push MQTT messages into the TV?
I am trying to run particular video (or a playlist) on youtube when launching the app but I am unsuccessful… Can anyone help with this ? I would love to launch playlist when opening youtube app… or at least a video…