I have a Pending Show Request titled "Hitler Youth" dated April 18, 2018. The National Geographic Channel could have had better information like a good Series Description. But upon checking the credits at the end of episode one, I saw a production company called ZED. This website has a description that may work: https://www.zed.fr/en/tv/distribution/catalogue/programme/hitler-jugend. The end credits also give the copyright year as 2018.
Also, this article describes Nat Geo working with ZED and covers “Hitler Youth" - http://www.c21media.net/nat-geo-mines-zed-for-2017/.
Since the series has not been rejected yet, I thought this information could be useful in making the determination.
Also, both episodes are currently available for viewing in the cable company Spectrum’s On Demand area and at National Geographic Channel if someone can access either source and needs to research my request.
Hope this helps. Thanks as always.