How time crawls. It’s that time of year – the time when Halloween approaches, and The Simpsons presents its annual Treehouse of Horror anthology. And to celebrate its silver anniversary, Treehouse presents one of the best installments ever, including a parody of A Clockwork Orange that is real horrorshow, and a parody of another film that allows The Simpsons to be haunted by their own past selves – the ones from The Tracey Ullman Show, when Homer Simpson sounded like Walter Matthau, and when all of the Simpsons were drawn as, let’s say, less well-rounded.