The show is good fun, making the world around us seem a lot more interesting than it probably really is. In return, the show frequently strays from widely accepted history & reality. If you are the type of person that recognizes the things that are too good to be true (or at least spends the time to look it up to confirm), these kinds of shows are basically harmless fun. Unfortunately, and you can tell this from some of the reviews, many people assume that the material is true because this is "History" presented by academic-ish sounding people! I am as fascinated by area 51, fort knox, and the like as everyone else is...but the truth is sadly so mundane that if they made a TV series out of many of these things, almost nobody would watch!
Historical fiction can be good fun.
Historical fiction can be good fun.