1)Turn on the PS Vita and the PS4 and connect to the same PSN account on both consoles.
2)On your PS4, go to Settings and then PS Vita Connection Settings.
3)Now click on Add Device.
4)Your PS4 will now give you a pairing code. Don't quite as you'll need this code.
5)On your Vita, go to the PS4 Link app.
6)Choose the Remote Play option.
7)Now enter the code the PS4 gave you.
8)After that the PS Vita will confirm the connection with PS4 and then you'll see the PS4 XMB on your vita and on the tv.
Enjoy
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