Thumb Score: +1
Hi,
needs a bit of work but once it is done, you can use this account in the future.
You will need a new Itunes Account for Itunes Germany including a German address of your choosing.
https://www.apple.com/de/itunes/
Then you will need a gift card for the German store or a credit card which can be used there.
The price for Battlestar amounts to €15,99 or $ 18
I do this quite often. You can switch between accounts on Apple TV, so easily done 😉