“What’s a horse doing on a spaceship?” - Mickey

“You mean, what’s pre-revolutionary France doing on a spaceship? Please, get some perspective!” - Dr. Who

 

Series 2, the tenth Doctor, “Girl in the Fireplace”.

 

This was the episode that won the Hugo for “Best Short Form”. It’s easily the best Dr. Who episode I’ve seen so far, but it winning the prize before any BSG or Heroes installment is a plain madness. Spartan-like madness, in fact.