I recently switched from an older Samsung TV with a first gen chromecast to a Sony TV with AndroidTV. In addition, there are various devices in the house with Google Assistant (including a Google Home).
I used to be able to say "Ok Google, play 'name of some series' on Netflix on the TV". Even if the TV was off, it would switch on (HDMI-CEC) and load Netflix on the Chromecast and look for what I asked for.
With the new setup this no longer works. First of all, when the TV is off, the built-in cast is off so I need to switch on the TV manually first. Secondly, when the TV is on and I give the command, I get a response "Ok, playing blabla", immediately followed by "I'm sorry, I can't find that device."
Am I missing something obvious here?