Or attach an xbox or playstation and use the youtube, netflix etc clients on that. Both MS and Sony have a very strong interest in not letting their operating systems become host to virus/worm/trojan categories of software, as it would be a risk of game/content piracy. Yeah, you'll get ads for MS or Sony products and games on the home screen.

But I have a thousand times more confidence that MS will keep the signed, auto-distributed periodic xbox series x operating system updates 'secure' than I do that some random smart tv manufacturer will implement a proper operating system.