This may seem like an idiotic complaint coming from someone so obsessed with costuming and appearances, but one of the reasons why I'm so judgemental about historical dramas is that they're often so much more concerned with style than with substance. Not that style's necessarily a bad thing, since if historical dramas were actually "accurate" then it'd be damn near impossible to write them for a modern audience. A tremendous amount of research and effort goes into making things like Downton…