Roku tv by its self doesn’t support it. Back door way around it is buy an Amazon fire stick connect it to the TV, and when you set a routine in the Alexa app it will then turn on the TV and route to the camera pop up on the TV via Amazon’s platform.
I have Roku TV and that’s the only way I can get it on there thru programming (door bell being pressed or person detected) without direct screen casting from my phone.
