Factual error: Tarrant fails Astronomy 101 here, just as Travis did in the first season. He tells the clerk, "I'm surprised you've heard of it (the FSA), if you're from another galaxy." The Tharn and his minions were not extragalactic; they were from other planets in our galaxy. (00:35:10)
Factual error: The story takes place in Galveston, Texas. The geographical area is flat, but if you look closely near the last hulk out, there are mountains in the background.
Reunion (1) - S2-E1
Factual error: In the scene where Bobby and Pamela arrive at their hotel In "Las Vegas," they are actually in the Hyatt Regency Dallas. You can see Reunion Tower through the windows in the atrium. (00:09:20)