Press the Home button on your remote, and select the cog icon in the top-right corner of your screen to open then Settings menu.
Next, head to General > Reset to Initial Settings.
Follow the onscreen instructions to complete the reset.
How do I reset my TV to factory settings?
Hold down the menu button on the top or side of your TV for at least 10-15 seconds. An on screen menu will appear asking you to enter the time, date and location settings. Follow the onscreen instrucitons, and once completed your TV will reset to factory settings.
Can I reset my LG Smart TV?
Performing a Factory Reset – webOS. Press the Smart button on your remote, then click the Gear icon in the top right, then General > Reset to Initial Settings. After the TV restarts, begin by selecting your language and country. Select how you get your TV signal, then set your local area code and click OK.
Does my LG TV have a reset button?
Resetting LG tv Picture and Audio settings only. This option doesn’t reset your channel setup. To reset settings, press and hold down the OK button on the TV panel for 5 seconds.
Photo in the article by “Mount Pleasant Granary” http://www.mountpleasantgranary.net/blog/index.php?d=14&m=02&y=14