It's custom, called History Sans:
https://www.behance.net/gallery/38852375/History-Channel-Rebrand

Thank you Mr. K.C. Thompson
I sorry to hear that it is not available to the public :(
But without a doubt, your information is very useful.

I tried in the font identification website http://en.likefont.com

and there are 5661 matched fonts in total, and the most similar font is Alternate Gothic Cond ATF Bold. This is my identification result page for your image: http://en.likefont.com/community/1513892/