Try this
Go to [TV Information] in Settings.
➔ Open the TV Settings menu and select the menu items as instructed below.
[2021 WebOS 6.0 or later] Opening the [TV Information] panel in the Settings menu
Select [All Settings] in the [Settings] menu.
[2020 WebOS 5.0] Opening the [TV Information] panel in the Settings menu
This guide was created for all models, so the images or content may be different from your product.