I want to know some things on instrument of coldplay but not limited

Do you know that keyboard use the coldplay members

And if you know why to use a tv behind the keyboad? How is it built?

I found this video that comes to this topic. To me if the subtitle because you do not understand spoken English very well thanks! P.S. Miller(The coldplay roadies and tech) begins to talk about the TV between 04:00 and thanks!

Link of video with Miller and Keyboard Mag

/forum/showthread.php?t=70816

The keyboards are generic MIDI control synthesizers. As for the brands I do not know. I do know that Chris's piano is a Yamaha GT-20 electric acoustic with custom sounds that the sound engineers mixed for touring. The TV is probably just a regular TV and is just playing back stock footage.

The keyboard is a Korg kontrol 49 but it is painted.