> Don't smart TVs (of LG or others?) connect to open networks of neighbors, like Vodafone hotspots?

I can find no verified reports of this behavior. People are looking for it.

> all the spyware modules connect to open Wifi of neighbors, and soon, LTE.

I can find no verified reports of this behavior. People are looking for it. Cellular connections have been theorized since the beginning but have not been discovered.

Given the number of qualified people seeking out these behaviors, if they appear we will know it - with certainty.