Continuity mistake: When Jerome get stabbed in the neck, in the first shot the blood comes from his mouth and goes towards his eye. In the next shot, there's no blood trail going to the eyes, but instead to his cheeks. (00:34:50)
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 Molly walks into the "memory lane" tent at the carnival, four shots in we can see the reflection of a crewmember (moving dark silhouette) on the glass display beside the entrance. Then as Molly turns the crank and looks into the Mutoscope, in the wideshot we can see a crouching male crewmember hiding behind the case, at the left side of the screen. (00:28:15)