Factual error: In the Pope's coronation procession they play the anthem Zadok the Priest. It was composed by Handel for the coronation of George II in 1727, 235 years after this coronation took place.
Episode #3.2 - S3-E2
Factual error: When Camille shows the emails to Humphrey, the last one in the list is dated Tue 15/01/2014, which was a Wednesday. It should also be noted that the list does not appear to be sorted by any criteria that would work on Outlook Express. (00:22:00)
Factual error: When the tracking dog finds a gun in some bushes, Kenda, who is narrating, says that the gun was a Ruger Mark I, which is a semiautomatic target pistol; but the gun shown in the reenactment is a snub-nose .38 Special revolver.