Doctor Who trips over its own bootstraps in Before The Flood (S9E04)

*SPOILERS* Usually, the habit of not immediately addressing the previous episode’s cliff hanger at the start of the episode bugs me but this time out, with Capaldi’s Doctor back in “Listen”-style lecture-the-audience mode is just so good it didn’t bother me. I’m really starting to like the 12th Doctor’s fondness for the electric guitar (it’s…