How to Win Friends and Influence Nazis - S3-E7
Deliberate mistake: Burkhalter pulls some papers out of his bags marked "Top Secret." Why would German papers be marked in English, so the prisoners know what not to look at?
Jeannie, the Hip Hippie - S3-E6
Deliberate mistake: Phil Spector is credited as having played "Steve Davis", but that name is never used in the episode; he is instead addressed by his real name.
Deliberate mistake: They show footage of Max and Larabee scouting out the entrance to a bank. This same footage was used in the earlier episode "The Treasure of C.Errol Madre".