After entering the setting interface, click General. Then click Picture-in-Picture in the general interface. Then click the button behind the picture-in-picture that opens automatically. This will turn off the picture-in-picture function. If you need to open it, please click the button behind the picture-in-picture automatically again. There is a "signal source" button on the TV remote control, you can exit the multimedia state, and then select the signal you use. If it is a cable signal, select "TV". If it is an IPTV or cable set-top box or receiver or DVD, select "Video 1" or "Video 2", and finally press "OK" or "Confirm" to exit. Some people can exit by pressing the "Exit" button on the remote control.