This is really poor research on their part.
It's a failed article IMHO. It's to the point that the article should be pulled and corrected. None, as in zero TVs are made in the USA. They haven't been made in the USA for many decades. I HATE to say it, but an LLM would have given a better researched article.
> "Below are the brands I’ve identified as most likely to have dumb TVs available for purchase online as of this writing."
That just has to be an LLM at work.