Many flights do not have reliable internet access that is fast enough to stream video. And I want to watch what I want to watch, not the random selection of st

Many flights do not have reliable internet access that is fast enough to stream video. And I want to watch what I want to watch, not the random selection of stuff I might find on the inflight entertainment. Not to mention that I want to zone out, and not hear a captive airline credit card sales pitch from the flight attendants at 90db in my headphones while they pause the video I'm watching. So, for all those reasons, I'd prefer to download content prior to the flight and watch it in-flight.