BTW, "smart" TVs send screenshots too. [0]
We’ve reached the state where you can safely presume anything “smart” is violating your privacy.
yeah, I liked the simplicity of having things on my tv, but I gave up and got an apple tv box. I was getting way too many "I was just talking about that!" ads on some of the "free" services i was watching old tv shows and movies on. I'm a pretty frugal guy for the most part but buying a separate box that doesn't sell everything you do and say to advertisers is worth it.
According to the paper, your TV may send snapshots even when it’s in a “dumb” HDMI input mode. So make sure it’s not on the network at all.