> you should turn that crap off and replace it with a Roku, Apple TV, Fire TV, or anything else external. [...] Under no circumstances would I give any smart TV Internet access.

I totally agree, though my only exception is for Roku TV devices. They're essentially a flat-panel LCD with a Roku permanently stuck in the case with software that supports different inputs as "apps." I've been doing some packet sniffing and, so far as I can see, my TCL Roku TV doesn't do anything different on the wire that my Roku Premiere does.