Factual error: In this episode we see Blithe get shot in the neck and are told that he died in 1948. In reality he was shot in the shoulder and survived. He later served in Korea and was promoted to master sergeant as well as receiving the paratrooper of the year award. Blithe died in 1967 while on active duty in Germany.
Factual error: When Edgar proves that Mary-Ann Taylor framed Sarah to be the rat in CTU, he claims that she remotely took control of her computer by sending the signal over "a plain old AC power line." This is not possible, unless the computers were equipped with special hardware to separate the AC from the signal. If they were, this traffic would have been observed by James Heller's assistant.
Factual error: Aetius' troops don't look anything like 5th century Roman soldiers. They are carrying a large rectangular shield, a pilum (a spear which was used for throwing) and a sword (gladius) on their right. This was typical for the Roman army until about the 3rd century A.D. In Aetius' time, the soldiers would have had smaller oval shields, a hasta (a lance used for stabbing and for fending off cavalry attacks) and a sword (spatha) on their left. Also, there would be an enormous amount of "barbarian" mercenaries in the Roman army (Goths, Vandals, even Huns.), so it was hardly a Roman army anymore. And where's Aetius' cavalry?
Factual error: In one show, Sean and Claudia are in Las Vegas. Sean is doing well at the craps table and starts showing off. One time he even throws the dice around his back onto the table. However, when players are playing craps, they have to keep the dice above the table at all times. People working at a craps table would not have allowed Sean to do what he did.
Factual error: During the montage of Lizzie and Matt at the charity drive golf tournament, there is one part where Lizzie is standing outside the Men's toilet as Matt uses it. However they are handcuffed together with cuffs that have a chain which is about an inch long, so there is no way Matt could use the toilet with Lizzie standing outside the door. (00:16:40)
Factual error: When the cops need to arrest a medical professional, they are frequently shown barging into his/her office, exam room, or even operating room. This would never happen in real life and is strictly forbidden, as it is a gross violation of the patient's privacy, and in the case of the OR, could contaminate the sterile environment, thereby jeopardizing patient safety as well.
Factual error: This is at the end of the episode, when Jordan takes the key that she found for the 66 Ford and tries it in the ignition it should have been a square key. Round keys were for the doors and trunk. Back then they made two keys - one that opened the car doors and trunk and one that started the ignition. She never even tried the key in the trunk.
Factual error: Even though the show is called "Samurai Jack", Jack isn't really a samurai. The correct title for him would be a Ronin as a Ronin loses their master if their master dies or loses favor with their master and also has no home anywhere. Jack has these attributes. He has no master and no home.