There are banners/tickers at the top or bottom of the screen.
Select within the text to jump to the related setting screen.
In this case, the TV might be in demo mode. Try exiting demo mode.
- Press the ACTION MENU button on the remote control and select [Suspend Demo]. Then, press the HOME button on the remote control and select [Settings] — [Retail mode settings]. Disable [Demo mode] and [Picture reset mode].