I seem to recall that Vizio was added to my "do not buy" list quite a long time ago, when it turned out they were monitoring your watching habit ( https://www.theverge.com/2017/2/7/14527360/vizio-smart-tv-tr... ). This seems to be more of the same I guess. Choice text from the link above: Q: Why did I see an ad in Scenic Mode? A: After Scenic Mode launches to full screen, you may see ads. We offer free, scenic conten…
To be honest, this is part of why TVs can be offered for so cheap these days. Same reason really cheap phones are stuffed with bloatware. Luckily with TVs you can freeload: just never connect it to the internet and only apply updates via USB. Stick an Apple TV / Chromecast / console into it for playback. This might even become standard operating procedure considering Samsung is getting into the ad game, and LG and So…
The best solution is commercial displays but those can be quite a bit more expensive and hard to pick out.