Deep Throat - S1-E2
Other mistake: When Scully and Mulder are pulled over by the government agents, one agent takes and unloads Scully's gun. When he removes the magazine you can see it has only one bullet in it, as this model of magazine has cutaway sides to show the amount of bullets in them. (00:26:47)
Other mistake: When Mulder and Scully are first visiting Darlene Morris, there is a split-second shot of Mulder examining residue on his fingers that is edited in between Mulder and Scully ascending the steps to the porch and knocking on the door. It's as if the sequence was initially longer with Mulder discovering a suspicious substance before he and Scully knocked on the door that was not completely edited out. Note: this mistake may only appear on certain formats. At the time this mistake was originally posted, I spotted it on Netflix. However, it does not occur on my DVD, nor Hulu. (00:07:20)
Other mistake: At The Beginning when Mulder and Scully leave the room and walk across the FBI office you can see and hear the camera get knocked to the left by something (it was probably the filing cabinet that they walk past a second later). (00:05:19)
Other mistake: It's incomprehensible why such an intelligent COS has to print out the stolen data on Scully’s monitor, risking being exposed. (00:15:40)
Other mistake: When Jerry Lamana goes up in the elevator in the Eurisko building, the "thirteen floor" message is missing. (00:20:55)
Other mistake: The fourth photo could not have been taken by Mulder, because he is shooting craft's pictures from elevation, while this photo is taken from the ground level. (00:08:45)
Other mistake: Eve 6 says that ordinary human beings have 46 chromosomes, while the Adams and the Eves have 56 chromosomes. This makes 10 additional chromosomes. However, Eve 6 also mentions that they have additional chromosomes number 4, 5, 12, 16, and 22 - only 5 additional chromosomes. (00:22:40)
Suggested correction: There is no mistake. Normal humans have 23 pairs of chromosomes: two 1s, two 2s, two 22s, and either XX for females or XY for males. 46 chromosomes in total. The Eves have 5 extra pairs of chromosomes, or 10 extra individual chromosomes. So what Eve 6 said tallies up. In reality, this many extra chromosomes would surely be lethal.
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Other mistake: Mulder pulls in to park in front of a red car. The front plate on both Mulder's and the red car is the same: 5S2 706. (00:27:37)
Other mistake: Being chased by Tooms Underneath the escalator, Mulder climbs out of the manhole in front of the escalator, and hits the switch to activate the escalator. Tooms is then being dragged away from the manhole, but the direction of movement of the escalator below the floor would actually have dragged him towards the manhole where Mulder and Scully are.
Other mistake: Deep Throat says that Mulder and Scully are standing in the very room, where "the first human-alien hybrid was created." However, only in the "Patient X" episode, are we told that it is Cassandra who has just become the first successful human-alien hybrid. (00:28:00)
Other mistake: An agent and Scully analyze the fragment taken out from Duane Berry's body. The agent draws Scully's attention to "small markings", which are half a monitor size, and Scully naively asks where they are. (00:39:00)
One Breath - S2-E8
Other mistake: At The Beginning of the episode, a gravestone for Scully is shown. However, it seems as if less than a week passes between Scully's mother and sister deciding to let her go and Scully waking up. It's unlikely that the gravestone business would have the stone ready in such a short time.
Other mistake: Unlike Mr Chaco, who has the brace clamped around his neck, Scully is clamped around the top of her head, which is a quite irrational way of executing a person, because the clamp does not serve as a stabilizer. In fact, in this arrangement, Scully is not fixed to the stand at all. (00:38:15)
Anasazi (1) - S2-E25
Other mistake: Immediately after a shot has been heard, Mulder, who is in flat #42, grabs his gun and rushes through the corridor passing by flat #47, which means he is still on the same floor. Within 10 seconds after the shot, the next-door lady is already aware of the crime. Not mentioning that 2 seconds later two policemen arrive at the scene. (00:07:21)
Other mistake: The heavy rain falls and bangs on the greenhouse roof, although Mulder and Scully are completely dry, even though they carry no umbrella with them. (00:10:20)
Other mistake: There is too much light on the ceiling for the tiny hole Amy accidentally discovers on the wall. In one shot it is plain to see that there are other light sources. (00:20:00)
Other mistake: It seems that the first round fired by the hit squad destroys the camera or its power supply unit, because the satellite transmission is interrupted exactly at the moment the squad enters the train car. However, the members of the squad firstly shoot in the glass and then at the doctors. (00:06:25)
Other mistake: The FBI crest outside the main FBI building is incorrect as it has the words UNITED STATES BUREAU OF INVESTIGATION on it instead of FEDERAL BUREAU OF INVESTIGATION.
Other mistake: After AD Skinner is finished being interviewed by the police, Mulder asks him about why he would employ the services of a prostitute. Skinner looks at him in shock and Mulder says "You didn't know she was a prostitute did you?" I find it hard to believe that at no point in the interview did the police not mention to Skinner the dead woman he woke up next to, after spending the night with her, was a prostitute.
Other mistake: When Mulder and X are standing outside the Mulders' summer house, we hear that it is raining, but there is no sign of rain on neither of them. (00:17:50)