The Werewolf - S1-E5
Revealing mistake: It is obviously a dummy in a woman's dress The Werewolf throws into the empty swimming pool.
Revealing mistake: Rockford checks out of the publication featuring the bulletin article about the Greens headed for the Greek Islands. The camera lingers on it, and you can read it's all filler gibberish about investigations and such. (00:17:35)
Revealing mistake: When Major Popov aims the rocket launcher at the Venus probe, there is no rocket in the launcher- it is just an empty tube.