If you play video games, you probably have a couple of neat kernel rootkits installed as "anti cheat".
A lot of remote proctoring stuff for exams are looking a lot like rootkits too.
EDR/XDR is also just rootkits. For security. The only thing that can stop a bad guy with a rootkit is a good guy with a rootkit, after all.
Of course, I guess most people don’t care.
The TVs are hardwired, it’d be trivial to have an accomplice show answers or whatever on them.
There are cheats out there that use video captured by capture cards as input for an AI on a separate computer to actually play the game like a human would. Once that becomes widespread there is no way to stop it, save from banning capture cards entirely.