Continuity mistake: When Simon Carver and David are speaking in Carver's office, Carver's hands instantly change positions form being spread out on his desk to clasped as the camera shots switch.
Continuity mistake: David and Kathy exit to the outside of the building, closing the inside door and the outer door. When Sheriff Carver exits to the outside, the inner door is not closed, but open as he steps out.
Task Force - S2-E16
Continuity mistake: A bullet hole in the helicopter's window disappears and reappears in the close-ups and long shots.
Task Force - S2-E16
Continuity mistake: After David and June crawl under the fence, their clothes have dirt and twigs stuck to them, but when they meet Jeremy in the barn, their clothes are spotlessly clean.
Task Force - S2-E16
Continuity mistake: In the barn with David Vincent, the distance between Jeremy Mace and June changes as the shots switch.
Task Force - S2-E16
Continuity mistake: After Bob is shot by the aliens, his head is down against June's body, but the next view of him shows his head resting higher up, on June's left shoulder.
Continuity mistake: When David Vincent is in the airport terminal, a black man and woman pass by him, but a quick shot later the couple are exiting the airport.
The Prophet - S2-E11
Continuity mistake: The hat a cult guard is wearing as he fights David Vincent suddenly disappears in the next quick cut.
The Prophet - S2-E11
Continuity mistake: When David is taken to see Sister Claire, the guard is resting his right hand on Claire's shoulder with all fingers lying flat, but the next shot of the guard shows his right little finger extended up, indicating he is also an alien.
The Prophet - S2-E11
Continuity mistake: The model of car David Vincent drives to the reporter's apartment changes as the scene cuts.
Summit Meeting: Part I - S2-E9
Continuity mistake: In the hotel room, Tressider crosses behind Vincent as Vincent puts a cigarette to his lips, but the next shot shows the cigarette down and away from his face.
Summit Meeting: Part I - S2-E9
Continuity mistake: The carrying handle of the TV set in Vincent's hotel room is down in the frontal shots of it, then up in the rear shots of the TV set.
Summit Meeting: Part I - S2-E9
Continuity mistake: David Vincent's view of the lieutenant offering the secretary a cigarette shows the lieutenant's right little finger extended (sign of him being an Invader) but the next quick shot shows the lieutenant's little finger retracted.
The Spores - S2-E7
Continuity mistake: During the shootout with the aliens at the greenhouse, Sgt. Goldhaver's uniform is covered in dirt. When the shootout ends, his uniform is much cleaner.
The Spores - S2-E7
Continuity mistake: As Roy returns the case to the diner, Hal is reaching over the steering wheel of his hot rod, but the next quick shot shows him sitting directly behind the steering wheel.
The Spores - S2-E7
Continuity mistake: When Hal examines the case, he has lifted it close to his face, but the next shot shows the case lying flat on the table.
The Spores - S2-E7
Continuity mistake: When Jessup is driving looking for Hal and the others, fields are shown through the drivers' side window, but when the scene cuts, Jessup is suddenly driving through the middle of a housing complex.
The Spores - S2-E7
Continuity mistake: During the fight scene in the diner between Jessup and Vincent, the spore case is about eight feet from Hal, but when he reaches to pick it up, it is only about three feet from him.
The Spores - S2-E7
Continuity mistake: When Hal picks up The Spores case and begins to walk away with it, a water heater is behind him. When the scene cuts to a wider angle he is no longer in front of the water heater but in the middle of the room.
The Spores - S2-E7
Continuity mistake: In the closeup of Tom Jessup's left hand grasping The Spores' case handle, all four fingers and thumb are wrapped around the handle (knuckles up) but the next long shot shows him holding on to the handle with his first three fingers (knuckles down).