Last year we flew home on Airtran and they had the little radio things that the kids plugged their headphones in and listened to the station of their choice. This year we are on Delta both ways and the kids are wondering if they have the same thing. Last night I looked on the website and there is all this stuff listed as in flight entertainment (movies, shows,music, trivia, etc.). How does it all work? What is their setup like on the plane? FWIW we are on a 2.5 hour flight. Thanks!