When it comes to in-flight entertainment, there are two kinds of flyers—the ones who gamble on the random crud on the seat-back screen or the airplane Wi-Fi and those who download their entertainment the night before. Be the second kind. TV shows offer the ultimate flexibility when flying. You can watch a single episode between the drink cart and your nap, or binge a whole season on a long-haul flight—it's your call.

Long-haul flights are where sanity goes to die. Six to twelve hours can feel like an eternity, especially when the in-flight entertainment (if there is any) promises 400 titles, but somehow has nothing good. On my last transatlantic haul, my mental health survived on one thing–the movies I'd downloaded from before takeoff.