I'd say that the TV is to blame: it's claiming to be tens of thousands of different TVs, and Windows is dutifully keeping track of them and their configurations

I'd say that the TV is to blame: it's claiming to be tens of thousands of different TVs, and Windows is dutifully keeping track of them and their configurations. Sure, Windows should be able to handle more devices on the home network than could fit within your average warehouse, but an issue like that should only crop up if you actually, y'know, try to do that. (Btw, your parentheses are unbalanced: https://xkcd.com/859/ https://xkcd.com/859/. And the author uses they/she pronouns (not ‘(s)he’): it says so at the top left of the page.)