Revealing mistake: When all the vampires are saying "for the dark", and one gets staked, there's a mark on his shirt where the stake's about to come through before it actually happens. Plus Buffy's hands are in the wrong place for her to have pushed that stake through, as well as there being no stake in her hand when the vampire gets dusted. Not only that, but the mark isn't even close to the vampire's heart to begin with. (00:34:50)
Opera House Murder Case: File 2 - S1-E22
Continuity mistake: There's a blatant coloring error regarding Kindaichi's clothes when he speaks to the inn's manager through the window; his shirt goes from orange to lilac, with a pea green undershirt. (00:09:05)
Visible crew/equipment: While Jefferson and Kareem are talking alone in the stairwell, just as Jefferson confides, "It's just that I feel so bad and so ashamed of everything I did before," the blue-sleeved arm of a crew member is visible at the right side of the screen. (00:33:25)
The Killings at Badger's Drift - S1-E1
Visible crew/equipment: After Barnaby and Troy question Michael Lacey at Holly Cottage and leave, it then cuts to Michael entering his painting studio, and while the camera is tracking backwards, the reflection of the short-sleeved camera operator becomes visible in the mirror atop the dresser, at the right side of the screen.