TV in rear

[Saudirick]

My MY2015FL has factory comfort seats and the factory entertainment package. I've now got freeview TV video in motion unlocked on my front screen with my OBDeleven but cant find a way to send the TV signal to the rear TV screens. I can share a dvd or flash drive film between the rear screens but cant find an option to send the TV signal to the back. Has anybody found a way or are they totally separate screens,