Continuity mistake: Charlie, Olivia's former partner and friend in the FBI shows up in this episode during the interview with Mrs. Rusk, but Charlie was killed off by one of the shapeshifters in a previous episode, and the shapeshifter that killed Charlie was himself killed off by Olivia, who in other episodes reflected back on killing him. This episode was supposedly meant to be in season 1 as ep 21 or 22. Unknown why they didn't air it then, and decided to put it in the middle of season 2 (for no apparent reason).
Continuity mistake: All shots of the Jeep Cherokee prior to it crashing (and during the process of flipping over) show that it wears factory-optional silver steel wheels of a 'star' style. But as the wreck settles upside-down, it's wearing plain steel wheels (like those found under full wheel covers or on a spare tire).
Orange Blossom Ice Cream - S7-E3
Continuity mistake: In the meeting they said Erica Fline broke out of jail a year ago, but that occurred three years previously. (00:01:53)
A Knight In Shining Armor - S1-E1
Continuity mistake: When Kitt's on fire, before getting back to the HQ, we see a shot of the main HQ screen, and towards the bottom left is a screen with a picture of Kitt and green writing reading "Fire extinguished".
Continuity mistake: In the final scene the camera switches between shots from the front and from the back repeatedly. Parker's arms are folded when shot from the back, and by her sides from the front (and vice versa).
Containment - S1-E5
Continuity mistake: At the end of the episode, when the bad guy is preparing the syringe of small pox, he follows the usual method of tapping out any air in the tube - when he is shown injecting himself, a large air bubble is back in the syringe (which would probably kill him quicker than the smallpox).
Bloodshed in the Bordello - S20-E12
Continuity mistake: Zac goes in a playroom to investigate, puts a truck on a playhouse roof and tries to get a presence to push it off but nothing happens. He walks around to investigate the rest of the room. He squats down to look inside of a tent and when he does the camera pans out to show Billy in the doorway. When it does the truck is not on the roof of the playhouse, but when Zac stands up and walks by the playhouse, the truck comes flying off it.
Continuity mistake: When Mary talks to Bobby D at the crime scene, her hair moves back and forth over her left shoulder between shots throughout their conversation.