Factual error: In scenes from the oil rig there are shots that show the shore line. This oil rig is supposed to be offshore of Louisiana. However, mountains can be seen in the shots of the shoreline. There are no mountains in Louisiana.
Factual error: Throughout the series, there are scenes of decapitated heads speaking with audible voices, in spite of the fact that they have no diaphragms, lungs or larynxes. Even if a decapitated head was somehow fully animate, it still couldn't utter a sound.
Factual error: They repeatedly say how equipment will freeze in moments, but they leave their faces exposed and coats open, hoods off at times. In such cold temps, the skin would freeze in minutes.
Attack on Central City - S3-E14
Factual error: Wells states that there are "precisely 90,000" possible 5-digit combinations for the keypad (to abort the nuclear code). However, there are actually 100,000 possible combinations (10^5).
Chin Check - S1-E3
Factual error: The cops raid a house and find some rifle ammunition. The female cop says "cop killers." A few seconds later three cops are looking at the bullet and a box used to store it, it appears to be a 5.56x45mm round used in the AR-15 style rifles. All high powered rifle ammunition, doesn't matter if its bullet is fmj or armor piercing will go through soft armor which is what all police officers wear. Such ammo is available to civilians in every store. All rifle ammo could be considered "cop killer." (00:03:50 - 00:04:56)
The Legend of Curtis Ballard - S2-E3
Factual error: The missionary name-tags worn by Elders Hanson and Ballard say "THE CHURCH OF JESUS CHRIST OF LATTER DAY SAINTS." Church policy states that missionary name-tags are written in the official language respective to the country the missionary is serving in, which in this case would be Lithuanian, which according to Bing Translator would be "PASTARŲJŲ DIENŲ ŠVENTŲJŲ JE-ZAUS KRISTAUS BAŽNYČIA."
Factual error: Simone is hit by a bus running after her niece. The bus is service number 106, however service 106 is Finsbury Park - Whitechapel and runs nowhere near Horseguards Parade, which is where the scene was filmed. Also the bus is operated by Sullivans Buses, when route 106 is actually operated by Arrivia. The depot code SM (seen on side of bus) is Potters Bar and not AE (Ash Grove) which is the actual depot that operates route 106.
Delta Force - S1-E8
Factual error: Chip-augmented federal agent Gabriel Vaughn is chasing a former Delta Force comrade, now suspected of being a hired assassin in Bolivia. He catches up to the man, telling him to freeze because he's standing in a minefield. Vaughn says the field was planted by "Pinochet," which is wrong, since the episode takes place in Bolivia, and General Augusto Pinochet was the military dictator of Chile. Earlier in the episode, Vaughn is asked what happened between him and his former close friend, and he refers to an incident in Fallujah. But flashbacks of the incident show the two men in Afghanistan in 2006. Fallujah is in Iraq. (00:37:00)