Adding 5G today increases the BOM by 10$-30$ in volume production.
Keep in mind that the tv already has ethernet and wifi to ISP controlled networks. Basically almost every consumer ISP offer mandatory includes an ISP managed gateway, that can pre-certify your appliances or operate hidden ssid networks or "public" wifi access point to the ISP's network. So "smart" appliance operators only need deals with a few big ISPs to get this reach, no 5G required.
With less than a dozens deals you would cover most of the US and EU.
Keep in mind that the tv already has ethernet and wifi to ISP controlled networks. Basically almost every consumer ISP offer mandatory includes an ISP managed gateway, that can pre-certify your appliances or operate hidden ssid networks or "public" wifi access point to the ISP's network. So "smart" appliance operators only need deals with a few big ISPs to get this reach, no 5G required.
With less than a dozens deals you would cover most of the US and EU.