After my experience with Alexa pushing ads on me, I'll never get another smart TV if I can help it, not even if it's free. I read about those free TVs on Wired and wondered how they'd know if someone covered up the second screen as a way to ignore the ads. That tells me that there must be some heavy-duty surveillance going on.
These days, we go to Google to look up certain products, and related ads will appear on YouTube or Chrome right after. I even get ads for stuff I discuss with colleagues over WhatsApp! Technology is scary these days, especially those "smart" gadgets, so much so that I miss the simple old days.