The TV app on iPhone or iPad allows you to bring all of your shows and movies together in one app. You can sign in with your cable provider to watch shows from ABC, NBC, and many others. You can also connect your streaming services such as Hulu, Netflix, and HBONow. If you’re concerned about using too much cellular data watching shows, you can turn this feature off. But if you’ve got enough data and want to watch your shows even when you don’t have Wi-Fi, use this tip to turn on Cellular Data for playback.