lol, I Ctrl+F'ed for this brand after having pointed my agent at it. There's some pretty bad stuff on there, some of which I've already reported to Vizio.

If you wanted to give your coding agent a crack at the internet connection thing and patching that out, there's some sort of pairing you can do over LAN to allow access to launch web content, this can be chained with old Chromium RCEs to gain root access.