When it comes to securing your LG TV's connection, there are several protocols you can use. One of the most popular is WPA2, which is a secure wireless encryption protocol that encrypts all data sent over the network. You can also use WPA3, which is a newer protocol that offers more security than WPA2. Additionally, you can use WEP, which is an older, less secure protocol. Finally, you can also use a Virtual Private Network (VPN) to establish an encrypted connection between your TV and the network. With these options, you can be sure that your LG TV's network connection is secure.