Jim Moir, erstwhile Reeves, explores a very potted history of "video art" over an hour. It's illuminating, certainly, and I'd rather stare at the extremely pretentious world of abstract art through his respectful but mocking lens. When he thinks something is silly, he says it, and a lot of these folk need gently mocking rather than acres of unearned respect. The earlier phases of video art are far more interesting than the stumbling attempts at trying to define what that medium might consist of in the post social media age. I always admire how in relatively dry docs like these Jim folds his own foolishness into it with ease.