You can’t have a time travel show without a few anachronisms. For years, fans of Doctor Who have devoted themselves to picking over every single scene of the show, looking for errors in continuity, cast and crew mistakes and, of course, historical inaccuracies. However, fifty years after the show first aired the number of anachronisms is actually surprisingly low. Ok, so episodes have included the occasional 19th Century television aerial or light switch. Characters also occasionally behave oddly when you actually stop and consider their native time period, or use figures of speech that are much too modern for them to know. But most of these mistakes are easily overlooked, and won’t even register on a casual viewing.