Visible crew/equipment: When the engineer brings Carol back to the transmitter, he is running up the driveway. The camera shadow is visible on the pavement.
Visible crew/equipment: When Carol walks up the drive to the transmitter, the shadow of a crew member is visible on the pavement. It moves.
Visible crew/equipment: While alien reports to home planet, the shadow of the boom mic passes overhead. (00:12:20)
The Forms of Things Unknown - S1-E32
Continuity mistake: After running through the woods getting soaked by pouring rain, Casha arrives on Kollos' doorstep with her hair neatly coiffed and perfectly dry. In fact, within minutes of coming in out of the downpour, Casha, Leonora and Tone all have completely dry hair and clothes. (00:15:00)
Other mistake: Mace's chest camera sends images from impossible angles - including several that include Mace himself. At the end, his superiors watch him from a camera that's obviously mounted in a tree and not on his person. Yet when Mace smashes his chest camera, the transmission goes dead anyway. (00:48:00)
The Guests - S1-E26
Revealing mistake: The actress is playing chord progressions on the piano. As the camera starts to pan away, she takes her hands off the keys entirely - but the piano chords continue to play. (00:18:55)
Continuity mistake: In the lab, Anderson collapses with his arms crossed above his head. When the shot cuts, his arms are suddenly uncrossed. (00:21:30)
