Unloved middle child

So Steven Moffat has delivered a three-parter by stealth, something he's apparently always wanted to do because it hasn't been done before (so did I imagine that that's exactly how they introduced the Derek Jacobi / John Simm Master at the end of Series 3?)

"The Pyramid at the End of the World" by Peter Harness and Steven Moffat, directed by Daniel Nettheim. Spoilers after the cut.

The Moon's (not) a balloon

Having a look at what Peter Harness has written before, I see he's one of the writers on the upcoming Jonathan Strange & Mr Norrell adaptation. And since his Doctor Who episode was a decent debut, that bodes well enough.

"Kill the Moon" by Peter Harness, directed by Paul Wilmshurst. Spoilers after the cut.