If you don’t want to read the article:
There is a way to turn off your Android TV so that it does not collect data from you. You can do this from your TV’s settings by following these steps (via CNET.)
In “Settings,” scroll down to “Personal.”
Go to “Usage and Diagnostics.”
Turn the switch to “off” to ensure your data is not being tracked.
You can also visit myactivity.google.com to see what information Google has saved about you. You’ll be able to control what Google can and cannot collect about you by managing some data tracking here. Web and app activity, location history, and YouTube history are just a few examples. You can disable all of these features as well as delete your activity.
The only downside by turning off “Usage and Diagnostics” is that developers won't receive the bug report when their apps crashes, which is useful to fix any problems they have and improve their performance.
Some apps have an independent bug report implementation but they are very few compared to the majority.
My solution to this problem is not to associate any google account with my various android tv devices. This does mean no access to the google play store. So, I just install/update apps over adb.
Yes, I'm at least a little bit crazy.
Not nearly as bad as the way Roku uses that
Just to add my two cents not every device might be the same. On my Sony XBR-A1E it's in "settings" scroll down to "Device Preferences" Then you go to "Usage and Diagnostics".
Save yourself a click. This is what the site says
In “Settings,” scroll down to “Personal.”
Go to “Usage and Diagnostics.”
Turn the switch to “off” to ensure your data is not being tracked.