Twelve Days of Krampus - S3-E8
Visible crew/equipment: During a fight scene between Nick and the Krampus you can see a man running out of the shot. This is the part of the fight just after the kids are being lowered from the tree.
Grimm (2011)
Episode list - season 5
Starring: David Giuntoli, Russell Hornsby, Sasha Roiz, Silas Weir Mitchell, Bitsie Tulloch
More mistakes in Grimm
Nick Burkhardt: I guess you don't have to be a hexenbiest to be a witch.
Adalind Schade: You don't have to be a witch to work this kind of magic.