No, it doesn't.
No, it doesn't.
It's from a comment, not even the article or the video it's based on. It's just the same internet rumor mill that's been going around for years, but more official because someone quotes it on an discussion on a news article because someone posted it in the comments of the article.
Anyone who's tried to test this theory has not proved it. A few claims in support forums are more likely to be people's guests or family just connecting it to the wifi.
What they say "Some ISPs provide open networks and some [unspecified] smart devices automatically connect to such networks". They don't say these TVs (or any TVs) are in that bucket. Given how much they've tested about these TVs, I'd say they'd have found and named any TVs that did that.
Honestly this was more a behaviour of very early wifi devices, I don't think I've run into such a device in decades, since people started talking about open wifi networks like they talk about piles of needles.
Honestly there's enough real misbehaviour documented in the video to go without making some up, and it's a little disappointing GN decide to allude to that claim without proof.