Many of the comments here say that you can just not give your TV access to your network and you'll be OK. This may not actually be true thanks to Ethernet over

Many of the comments here say that you can just not give your TV access to your network and you'll be OK. This may not actually be true thanks to Ethernet over HDMI(1), which could let your Roku/Fire Stick/Apple TV give your TV internet access over the HDMI cable. (1) https://www.hdmi.org/manufacturer/hdmi_1_4/hec.aspx https://www.hdmi.org/manufacturer/hdmi_1_4/hec.aspx