Revealing: In season 1 episode 15, Officer Kathleen looks for Sam's data in her database. The record id is DF-23094. She then follows the link to Dean's record. Its record id is also DF-23094. A database cannot have two records with the same id.

Audio problem: In "Provenance" in Season 1, when Sarah goes to touch Evelyn's shoulder, you hear Sam's voice telling her to stop, except his mouth isn't moving at the time the phrase is being uttered.

Continuity: When Sam and Dean enter the Shoemaker home, a woman leaning against a wall holding a coffee cup starts to follow them down the hall. When the shot changes, the woman is back against the wall, talking to someone who wasn't there in the previous shot. Submitted by Captain Defenestrator

Continuity: When Sam and Dean are tied up in the sewer, Dean gets out of the ropes holding him and the camera changes to Sam, but in the background you can see Dean with the ropes still around his arms & upper body. Submitted by Cybermoose

Continuity: At the end of the episode, Dean and Sam pull up to the house to say goodbye. The moving truck has its back end facing the right, toward the front of the brothers' Impala. However, when they are driving away, heading straight without turning around, the moving truck is now facing in the opposite direction.

Visible crew/equipment: In the scene where Sam tells the little to girl to take her brother outside. The little girl runs out with her brother and Dean asks the little girl where Sam is, Dean runs to the Impala and grabs a shotgun. When Dean is running to the house, he runs on the lawn and you can see the shadow of the camera man running with Dean at the bottom of the screen.

Continuity: Near the end of the episode when Dean is being chased by the possessed truck, Sam tells him to take a left. After he's made the left, Sam tells him to go exactly 7/10ths of a mile and stop. Dean looks at his gage and it reads 70098.3. Dean looks up, then back at it: it changes to 70098.5, but the next time he looks down it says 70100.6 and when he stops it says 70101.0, meaning he's gone 2 miles too far. (Probably meaning it took two shots to get the scene right but they messed up on the gage.)

Factual error: When Sam and Dean are showing Jo pictures of H. H. Holmes' victims, the last picture was a victim that was not his. The final black and white is Jack the Ripper's very first victim.

Visible crew/equipment: In the scene before Dean makes the promise to Sam, as the camera pans along the side of the Impala, in the rear of the car, you can see the dolly track that the camera runs along.

Continuity: In the scene where Dean is with Bobby at the burned down Roadhouse and Dean gets Andy's vision about where Sam is, the first time Dean scrunches his face in pain he puts his left hand to his head. The shot changes to a back view and you can tell his left hand is still at his head. But when the shot switches again Dean is bringing his right hand down from his head.

Revealing: Sam is breathing noticeably at the beginning of the show on the bed even though he is supposed to be dead. Submitted by Tricia Webster