Some IFE equipment is a confounded nuisance the way the necessary control gear has been sited under the seat in front of you (generally on the aisle seats), taking away the legroom of the pax in those seats. I'd much rather have the legroom.
Tommy, just for your info I often need to go to the Far East or Australia and I never even take the headsets out of their packaging. I always have the Airshow on, but that's it.