Also debunked in the Gamer Nexus video. The TV will scan for public wifis and connect. Watching the video, it also seemed like a "missed opportunity" for LG to not create a mesh network of LG devices that would help eachother connect to the internet. So the LG device on your neighbours wifi might help your not connected TV to some tasty internet access. Or at least to unload its cache of A(V)CR fingerprints.

LG is truly an adversial party in all of this.