Oh wow, that sounds highly inconvenient. I wish it was as easy to re-flash android TVs as it is to re-flash android phones. Best of luck, and keep us updated if you find a solution!

I’ve never used the tuner/TV part of my sony x900f, only HDMI inputs and apps. Is google pushing ads to live tv now?

Docker takes a lot of the management work out of the equation as many of the containers automatically update. Manual updates are as simple as recreating a container with a new image instead of your local one. I would like to add try running Portainer (a graphical management interface for Docker). Breaking out the various options into a GUI helped me learn the ins and outs of Docker better, plus if you end up expanding to multiple docker hosts you can manage them all from one console. I have a desktop, a laptop, and a RPi 4b all running various dockers and having a single pane for management is such a convenience.

Now tell us the pixel response time.