alt Hacker NewsYou'd be looking for what's now called a "dumb tv". But those are getting rare, because TVs that can't sell your watch data have to be more expensive to make up for that, and that doesn't sell. Commercial screens are an option, as are computer monitors. Or getting a smart tv and never connecting it to the internet. So far nobody has started shipping TVs with a mobile connection to exfiltrate data, as far as we know. Unlike cars.
There are plans to build these networks at various stages. Putatively to enable connectivity, but in practice the tech creates a device to device mesh network that enables side channel communication over a secure mechanism that is not necessarily subject to use control.