Easiest way to download shows / movies to iPhone?

[Mock]

I have HBO go but am using too much data when streaming and not on wifi

Is there an easy way to download a few episodes at a time that doesn't involve rooting or 69 steps?

I don't think the app gives u the ability to download and watch offline

[Clos]

[Potijelli]

[Mock]

[Mock]

[Breh123]

[Mock]

[Breh123]

[billybobjoe]

[Danny Chipchase]

[Potijelli]

[Peendrew]

[Bobby]

[Mock]