Fair point on the screenshot. Yea I dont think any TV is phoning home with screenshots. Rather it's phoning home with a processed signal of the A/V in order to ID that A/V. If there is A/V that cannot be recognized, it may phone home a screenshot of that.

And I also don't think it's easy to escape the scope of GDPR. I'm just saying companies come up with ways of being "GDPR compliant" and they've done so.