“Extremis” was the most unique episode of Doctor Who we’ve seen so far in season 10—but only because, unlike the rest of the season, it felt like an episode we’ve seen many times before from head writer Steven Moffat. For better or worse, it was a reminder of the style that will be forever linked with his time running …
Source: Gizmodo – This Week’s Doctor Who Highlighted the Best and the Worst of the Steven Moffat Era