Comment by uneoneuno

Have you noticed that on many home routers there is now a default open, sometimes password protective network named AT&T or Cox Wi-Fi? That’s the backhaul. The TV will join that automatically without asking you because they have an agreement with the network provider. This is how tons of devices phone home now. You don’t ever need to add a device on your network for it to have internet. If there’s a partner Wi-Fi network anywhere, it’ll push through that.