 Most full service airlines also include personal video screens as part of the in-flight entertainment system on long-haul aircraft - but some aircraft use a bring-your-own-device system where passengers use their own devices.The screens are often touchscreens or can be controlled by remote handsets.In economy and premium economy the screen is normally in a seatback, but in a front row seat or premium cabin they may need to be pulled out from a special compartment after takeoff, and then returned there for landing.