Revealing mistake: When we first see the army of Starks outside Global Dynamics, it's quite obvious that only one of them is actually the actor that plays Stark; the others are merely people who look similar.
Eureka (2006)
1 revealing mistake in season 1 - chronological order
Starring: Salli Richardson-Whitfield, Colin Ferguson, Erica Cerra, Neil Grayston
This One Time at Space Camp... - S4-E18
Plot hole: When Dr. Hughes is racing to save Allison when he thinks he is Carter from the events that happened in "I'll Be Seeing You" Henry says he is racing for a cliff, and that the cabin was just a hologram. But in the episode the Cliff was the hologram disguising the cabin. Henry even commented in that episode that he did not remember a cliff being there.
Marshall Jack Carter: Let's not shoot the crazy end-of-the-world machine just yet.
Trivia: When Allison and Jack are talking about their relationship and marriage is mentioned, Allison says "is it so inconceivable?" This episode features Wallace Shawn (as Dr. Hughes). Shawn starred in "The Princess Bride" where his character was known for saying "inconceivable."
Question: When Jack and Jason go to talk to Todd about MACAA, Todd tells them that they destroyed it in Section 14 pit followed by a nuclear explosion. If it was destroyed, where did the version that is missing from the shelves come from?