A common fact easily overlooked: television isn’t the same medium as film. As modes of visual storytelling, they may bear a family resemblance, but they represent long-form versus short-form approaches to narrative. In short, the rules, as well as the limitations and advantages, differ greatly for both. A television show has room to breathe and stretch its legs by its very nature, for example, while a movie is more contained by its own. Conflating the two, then, is a mistake, and one which Tim Burton makes repeatedly throughout Dark Shadows, his interpretation of the identically-titled 1960s/70s televised Gothic soap opera; the result is so overstuffed and hopelessly rushed that there’s…