Hi, if you are on Openhab 2.1 and not on Openhab 2.2 then you need to make sure to use the plugin pre-release from 13 Nov: https://github.com/sprehn/openhab2-addons/releases/tag/lgwebos-snapshot-2.2.0-keycontrol-201711132148
Just place it into the addons folder. The binding will load automatically and you should see it in paper ui.
Check your openhab.log file to see if the binding auto detected your network interface.
For this version of the binding and on RPis you often have to set the local ip address of your PI in the binding configuration in paper ui.
On your TV:
Under network settings allow “LG CONNECT APPS” to connect.
Under general settings allow mobile applications to turn on the TV, if this option is available. In combination with the wake on LAN binding this will allow you to start the TV via openHAB.
Turn on your TV and you should see a new Thing in your inbox in paper UI.