For general questions on how to do things, refer them to the built-in user guide.
To access the user guide, press the settings button on the remote [cog symbol] then select All Settings [three vertical dots] then select Support and User Guide.
Other Problems
No Power
If it is a traveller, check the power switch at the bottom of the cabinet is on.
If it is not a traveller, check the mains socket is turned on or the fuse in the plug is OK (UK only).
No Tuning
Check the aerial/cable lead or satellite lead is connected to the correct socket on the TV.
Check the TV is set to the correct viewing mode. To switch between Aerial, Cable and Satellite, press LIST then press the [three dots] button and select the correct mode from the drop-down list.
To try a retune, press Settings [cog button] then select All Settings [three vertical dots on the list], then select General, then Programmes, then Programme tuning and settings. On the screen that opens, select Auto tuning. Then, on the next screen, select the programme mode Antenna, Cable, or Satellite and select Next. The tuning will start, and when Done is highlighted, press OK.
If you still have no tuning, check the aerial or satellite dish is pointing in the right direction or the cable signal is OK. Try tuning another TV using the same connection.
Unable to connect to wifi
Check you have the correct Wi-Fi password.
Try moving closer to the router.
Unable to use or download any apps
Make sure the TV is connected to the internet.
If you are unable to download apps, check you are signed into an LG account.