If you can't find any desired results, please try using the following menu

Product Support
Receive help on your LG product
Receive help on your LG product
Check out the latest information related to this product.
For the most accurate technical information regarding features, specifications, installation and operation of your LG product, please refer to the Owner's Manual and other documents available for this product.
[Video]TV has no picture or sound when using a set-top box.
[Video]How to install and delete apps on your webOS TV.
[Video] TV has no picture or sound when using a PC
If you can't find any desired results, please try using the following menu