It’s OK, I’m not doing the usual full episode description at the moment. That’ll have to wait until I’ve seen the second half of this two-parter next week. And it’ll give time for those readers who haven’t seen it yet to see it before they read my burblings.
But just a few points of note:
There is some definite Moffat-style wibbly-wobbly-timey-wimeyness going on. Not to mention starting the episode with a scene that anyone else would have used as a mega cliff-hanger.
And here’s a few lines:
- Space: 1969! 
- They’re Americans!
- How long have Scotland Yard had this?
Actual details will follow in due course…
 Mr Moffat, you did that for extra Geek Points, didn’t you?