Like u/circuscritic said, its expensive to use 5g modems here, so they have to:

1. leach off the negbors guest wifi,
2. hostage the consumer until they give you internet
3. use 3g or 4g modems.

For option 1 or 3: or rip out the antennas/put it in a faraday cage. (Yes, tinfoil works)

For option 3 only: remove the sim card if possable.

For option 2: not much I can say but buy a tv without option 2. Try buying a model no later than 2021-22 ish.