You can use your system and the TV you connect it to for viewing video content from a PS Vita system. You can also enable linking with a PS Vita system or certain applications on supported devices.
Allow Media Transfer from Other Devices
If you remove the checkmark from the checkbox, your system will not be detectable by other PS Vita systems and devices on the same home network.
Passcode
If you set a passcode, it must be entered every time you try to transfer a video from a PS Vita system or other device to your system. The passcode must be entered on the device you try to transfer the video from.
The PS Vita system or other device must be connected to the same home network as your system.