Miracle Man - S1-E18
Continuity mistake: In the establishing shot of the courthouse the subtitle reads "Kenwood County Courthouse" but you can read on the building that it is the "DeKalb County Courthouse". (00:15:15)
Continuity mistake: In the scene where Merle is the in big box late 80's chevy with big 20-22 inch rims he is shown driving it in the barn yard drinking, playing music, and zombies following him. The shot changes a few times within the same scene with the big rims on, in one shot the car is shown with him driving it but the stock rims (15") are on the car, the paint of the car looks a little darker too. Then the shot changes again while he is still driving it and the big rims are on the chevy again. The shot that shows the stock rims is a pretty fast shot so it could be easy to miss.
Power Hungry - S1-E5
Visible crew/equipment: When they're transporting Joseph Meegar out of the building and into the ambulance, you can see the reflection of the boom mike on the open car door, (the car Charlie is putting Mr. Fischer into). (00:41:00)
Continuity mistake: When Mike Nelson asks Donna for help in dealing with Nadine, Donna's right hand is inside her locker, looking for something. It then mysteriously jumps to the top of the stack of books she has in her other hand. (00:12:45)
Last Rites for a Dead Druid - S2-E52
Visible crew/equipment: After Jenny and Mildred find the statue Jenny calls for Mr. Bernstein, and when Mr. Bernstein walks into the room the white tape T-mark can be seen on the rug where he stands.
The Retainer - S1-E2
Other mistake: The gas chamber is destroyed when the dogs pull a chain that's attached to its front support but it somehow collapses from behind. (00:19:07)
Idol Curiosity/Home Is Where the Hurt Is/Aw, Shucks! - S1-E9
Continuity mistake: Home Is Where The Hurt Is: When Handy walks out of the house at the end, he leaves the door open behind him, but in the last shot of the episode, it's closed. (00:14:12)
Continuity mistake: When Dean says he's going to talk to Amanda to get a grip on her mental state he has his head back on the seat and is looking straight ahead. When the shot changes he's now looking at Sam. (00:27:20)
The Red Door - S2-E9
Continuity mistake: When Big Jim communicates to the military commander at the dome, he writes on his notepad, and shows "Me and my son" to the commander; yet when he returns to his car and looks at it again, it's written quite differently. (00:24:05 - 00:24:45)
Other mistake: When Norman and Madeleine are talking outside the Motel about Sam, the left side of the screen appears to be split down the middle after Norman says "Because you know it's safe to tell me", causing a weird effect on the chair that Madeleine is sitting in.
Chapter One: Suzie, Do You Copy? - S3-E1
Continuity mistake: In Bruce's hamburger the salad is on the bottom and the bacon is on the top, in the next shot the salad is on the top and the bacon has disappeared, replaced with ketchup. (00:23:05 - 00:27:10)
Visible crew/equipment: While alien reports to home planet, the shadow of the boom mic passes overhead. (00:12:20)
Other mistake: While working in the basement, the young Hugh Crain gets his right hand sliced badly by a fan. When the story next jumps forward to the present time, the first thing we see is Hugh grabbing a handful of dirt with the same hand and there is barely a scar on it.
The Saint of Last Resorts - S1-E8
Continuity mistake: John throws some stones onto a table to investigate whatever took the baby. The angle changes and they're in a completely different arrangement.
Visible crew/equipment: When Dani hands the spider back to Miles after he uses it to scare Flora, just after she says "Including me" and the spider moves from Dani's hand to Miles' hand, a red tape marker can be seen on the ground right under Victoria Pedretti's left foot. (00:34:09)
Abra Cadaver - S3-E4
Visible crew/equipment: At the beginning of the episode, when the brothers chat around the central morgue table, the boom mike appears above the table, on the upper side of the screen. (00:04:55)
The Four of Us are Dying - S1-E13
Revealing mistake: As the men walk out of the alley, the block continues ahead of them. You can see it's a painted background.