They still have that audio channel? That was one thing on United that I liked. I'm a bit of a white-knuckle flier, mostly getting nervous when the plane tosses around in turbulence, even though intellectually I know that it's pretty safe, at least as long as you keep your seatbelt fastened. Listening to the calm cockpit chatter while this is going on really calms me down. Plus, you have an idea of where you are, as the pilots check in with control towers along the way, though I guess most airlines have a tracking map now.United also has an audio channel on their IFEs to listen to ATC interactions, I’m sure many railfans would enjoy something like that without having to buy their own scanner.