b997eee8_CCG___What_s_That_Inside_Joke___In_joke
[Card] Benoit - On a marché sur la lune [Exp.] 7 Docs [Type] Ref [In-joke] 
A lot of French here (and some bad fashions), but the subtitle (translating as "We've walked on the moon") is pulled from the title of the Tintin classic, in which the comic character indeed goes to the moon.
Unauthorized Dr. Who CCG - What's That Inside Joke?
In-joke