Use these instructions to enable Peacock for your LG Smart TV..
Visit this page to sign up for Peacock TV.
After you have signed to your account, hit on the "Home" button on the remote of your LG Smart TV's remote.
Go to your LG Content Store and then select apps.
Make sure you highlight the Peacock tile in the app and then use your remote to enter the code.
Choose the Install option to include Peacock on the LG smart TV.
After installation, sign-in with credentials from your Peacock credentials to access to and stream Peacock movies, shows as well as live streaming.
If you're not keen to enter all your details in the remote, then you can opt to utilize an activation code to enable Peacock TV.