They’ve got a good non-UFO, non-WWII series called “Battles BC” that I recommend thoroughly.
http://www.history.com/minisites/battles-bc
But other than that, yeah you’re right.
And can you prove that either space "monsters" or cryptozoology "monsters" don't exist? Of course not. That's simply your opinion, and opinions aren't facts.
They are always so, so close to getting the key evidence but somehow the weather turns bad, the sample was too degraded, the sample was bear poop, something, always something. This transparent attempt to create drama (along with the breathless narration) just drives me nuts.
guys cutting down trees and trying to get out of the way or guys in semis driving over frozen lakes.
Leave this to Discovery Channel, they do this type of programming better.