Earlier quoted context omitted.
Pro tip for devices that refuse to simply remove working WiFi credentials ( cough Samsung), is to connect them to a different “dummy” WiFi and then simply turn that off. I’ve yet to see a device that caches more than one set of credentials. But I suppose it’s only a matter of time.
Cat and mouse. Then we shall only ever connect to a throwaway wifi ssid created for the sole purpose of setting up that TV and deleted promptly afterwards. Samsung will then use NFC / QuickShare transient hotspot to helpfully sync all useful info from your Samsung phone nearby. Then we block that IP address or MAC ID from router side. Then smart TVs will switch to open mesh networks hosted by unsuspecting ISP custome…
The TCL can still act as a HDMI switch with CEC, and that can be labeled through the remote if you want, so there was never any need to connect to a network.