this maybe a stupid question

but do the flight crew have tv screens in the cockpit to be able to watch some IFE to ease the bordom during long haul flights?
if not how do they pass the time?
i've heard stories of pilots putting the seatbelt sign on and faking turbulence just after dinner has been served, keeping the sign on and seeing how long it takes for the passengers to start complaining about not being able to go for a pee