We have pretty much reached the stage with personal digital devices (ipads/ipods/laptops/tablets etc) where all the airline needs to provide for entertainment is GOOD, free WiFi and power connections (because batteries are still mostly useless). then everyone can occupy themselves and the kiddies with films, shows, music, games, work programs and the ever so fascinating internet.
Added big bonus. No IFE weight except for WiFi equipment. Big time weight and fuel savings.
Do I have to come up with everything???