The problem with putting history on a "channel" is that a lot of history happened before they could videorecord it. That's why there are so many shows on Hitler - those nazis loved their cameras - and on the 1960s - those hippies loved themselves.

Also, aliens are cheap because people with footage want to make their discoveries public.

On the other hand, history forgot to hit the DVR when, say Cicero was yammering on about the fragility of a democratic republic in light of its natural historic tendency to descend into an aristocracy.

I'm surprised there aren't more "ghost hunters - history" type shows on that channel. It should be called the Paranormal Hippie Nazi Junk Dealers Footage channel, but everybody feels better about themselves by thinking they just studied a subject that they ignored in high school instead of watching a teevee show.

In any case, it is always going to skew toward the period of the 20th century that is currently out of copyright: generally speaking 1945 and before and government/public domain footage after that. [Copyrights for printed materials exist for 70 years after the death of the owner - I would guess video footage is similar but could be totally wrong. In any case copyright keeps a lot of material from being raided by channels like the History Channel.]