If you have an LG TV that was manufactured in 2017 or later, chances are good that it has the ability to connect to WiFi without a remote. To do this, simply go into the settings menu on your TV and look for the Network or Connections option. From there, select the Wireless option and enter your network password. Once you're connected, you'll be able to access all of your favorite streaming apps and websites.
If your LG TV is older than 2017, it's still possible to connect it to WiFi without a remote, but you'll need to purchase a separate WiFi adapter. Simply plug the adapter into your TV's USB port, and then follow the instructions that come with the adapter to connect it to your wireless network. Once it's connected, you'll be able to browse the internet and stream content just like you would with a newer LG TV.