Continuity mistake: Season 2, Episode 5: "Goodbye To All That" - We see Marty Bedell playing on his Xbox 360 with a headset attached to his right ear. But when the T-888 arrives at his house to kill him and he goes to answer the door, the headset is gone. There was absolutely no time for Marty to remove the headset as the camera cuts too quickly.
Continuity mistake: When John and Pyle are at the shooting range, John's protective glasses are up on his head when he fixes Pyle's gun, down on his face when he fires the gun, back up on his head after firing and then back down on his face when he gives the gun back to Pyle. They're then back on his head before taking them off before the scene ends. (00:13:45)
Continuity mistake: At the range when the boy's gun jams, you can see tape on the bottom of the magazine. However, when John goes to clear the gun, the tape is missing.
Continuity mistake: On the firing range when John Connor fixes the stoppage on the rifle, his shooting glasses are on his head, when he hands the rifle back, the glasses are now over his eyes, and in the next shot they are on his head again. Not enough time has occurred between shots for this to happen.
Answer: It was cancelled due to declining ratings. Season Two had about half as many viewers as Season One.
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