- That whole bit with the citizens of Akhaten calling the Doctor "Leopold" over and over? That was a riff on an old Bugs Bunny cartoon.
- River's reference to the Macarena being played at Amy and Rory's wedding reception? You may recall from The Girl Who Waited when Past Amy and Future Amy sync up by both recalling dancing to the Macarena. So that's where that came from.
DOCTOR: The Cybermen won't advance. You'll just stop. You'll stay like this forever.
Back to the Mr. Clever, the 12th Doctor and River.
The Doctor: So you rejected the Cybermen! You hacked the Cybernet and...
Mr. Clever: ...and made them fools and laughingstocks across the galaxy. But that is not the complete focus of my attention. The Cybermen of old may be consigned to the junkyard of history but there's something new coming! Something... dangerous!
And the eyes of the Cybermen begin to glow red.
Next week, Mr. Clever unleashes the new and improved Cybermen. And there's nothing the Doctor or River can do to stop them.
Cybermania. Episode Five. Next Sunday.
Meanwhile a new post on something or another will be here on the blog tomorrow. Until then, remember to be good to one another.
And also remember...
It's fun to stay at the Y... M... C... A....!