> The TV manufacturers have agreements with the cell providers for open wifi services on all their phones so you can't block
That's a strong statement, what's your source?
Where I work, several pieces of equipment from vendors have embedded cellular and wifi that the vendor pays to have service with ATT or Verizon.
Where I work, several pieces of equipment from vendors have embedded cellular and wifi that the vendor pays to have service with ATT or Verizon.