Missed opportunity: Mendes escapes from the plexiglass prison in the heart of their inner sanctum because it is, in fact, a Great Glass Elevator that he can eject through the roof.

Half-an-episode later, I was still getting a chuckle out of Archer not knowing what a click was.

I'd offer the obligatory explanation that Doctor Who is never, ever abbreviated "Dr. Who." But in light of the fact that these characters, puzzlingly, didn't seem to know that the main character was named "The Doctor" and not "Doctor Who" I guess I'll let it slide.