I can't seem to get my movies /tv shows from my cloud onto my ipad. I have downloaded them over and over after it finishes it goes back to the cloud and says download again? Help please

I can't seem to get my movies that were purchased to download onto my new ipad mini.  I go into purchased and hit download then it says downloading gives me a time remaining.  When finished it takes me back to the iTunes home screen. When I go into my videos it says no videos please visit iTunes Store.  When I go back into purchased the movies and shows are just sitting there.  Help please.

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