As far as History Channel, I stick to stuff like Modern Marvels, or the new show Extreme Trains which is pretty cool to watch. Other HC shows I’ll watch is Battle 360, The Revolution, Dogfights, Hero Ships, Man Moment Machine, etc.
I’ll also watch a lot of Military Channel stuff.
I always liked “How Its Made”. But I don’t TV anymore and the Hitler Channel is not online, at least not for free.