One thing I liked about the Chromecast was that it displays weather on the screensaver/ambient mode but my Android TV devices didn't.
Today I found out that you can enable the weather on Android TV.
When the screen saver is active, go into your Google Home app and find the TV in your list of devices. Tap on it and you should see something at the bottom that says "Personalize ambient mode."
Tap on that and it will bring up a new menu with a temperature option. Mine was already enabled despite not showing anything, so I tapped Hide and then re-enabled it and a few seconds later the weather started showing on my TV.
This may be well known but hopefully it helps someone out!
EDIT: Just to clarify as it doesn't seem to work for everyone, this worked for me on two different Sony Bravia TVs, running at least Android 8 (I think).
I got all excited but it still doesnโt work on my 2017 Nvidia SHIELD ๐