Kaltenmeyer

Catspaw - S2-E7

Factual error: Kirk, McCoy, and Spock are chained to the dungeon wall, with McCoy noticing he is next to a skeleton, also chained. This is incorrect, as a skeleton's bones are held together by cartilage, which would rot over time. Therefore, the skeleton would not be hanging intact, but would be a pile of bones on the floor.

Scott215

Patterns of Force - S2-E21

Continuity mistake: The blood dripping from Isak's mouth changes sides.

Kaltenmeyer

The Changeling - S2-E3

Continuity mistake: As Nomad first hears Uhura's singing, it extends antennae and leaves the room. After a quick cut scene, as it turns in the corridor the antennae is retracted, then out again on the bridge.

Movie Nut

The Trouble With Tribbles - S2-E15

Continuity mistake: During the brawl, as Cyrano Jones watches the action, the glass he quickly raises loses most of the liquid. After he gets half way through the scene, the glass is suddenly almost full.

Movie Nut

Let That Be Your Last Battlefield - S3-E15

Revealing mistake: As Kirk turns all the way around to look at the newly arrived Bele, the shadows of the stage wiring is easily spotted at the top of the screen.

Movie Nut

Let That Be Your Last Battlefield - S3-E15

Continuity mistake: The planet Cheron is blue the first two times we see it on the view screen, but when the Enterprise enters orbit, and every time we see it thereafter, the planet has mysteriously turned red. (00:44:05 - 00:46:00)

Jean G

I, Mudd - S2-E8

Continuity mistake: Norman is behind Uhura and Chekhov, but when Harry Mudd walks up to Spock, Norman is now behind android 2 and Spock.

Let That Be Your Last Battlefield - S3-E15

Revealing mistake: Stock footage strikes again when Kirk orders the red alert. A shot of the bridge and view screen, with Kirk standing in front of his chair, once more switches Kirk out for a stand in, and Chekhov has gone and is replaced by what looks like from behind like a young woman or a man with a long neck. Also the central display between navigator and helm is now different from that earlier. (00:11:15)

Jean G

Patterns of Force - S2-E21

Revealing mistake: In the jail cell scene, when Kirk tears a strap from the bed, his left handcuff is open. It remains open for several seconds, while he tries to conceal it by moving his right hand to block the camera's view.

I, Mudd - S2-E8

Revealing mistake: After making the Alice androids freeze up, Spock returns to Kirk. As he does, look at the rock wall behind him; the seam between the panels is obvious.

Movie Nut

I, Mudd - S2-E8

Visible crew/equipment: A stagehand's foot is visible before the party beams down. (00:09:10)

Kaltenmeyer

Patterns of Force - S2-E21

Other mistake: In the cells, the particular strip of metal Kirk pulls loose has rivets that are noticeably different than the rest, making it easier to pull loose.

Movie Nut

Devil in the Dark - S1-E26

Revealing mistake: When Kirk holds a golden egg, a seam can be seen on it. (00:43:55)

Kaltenmeyer

The Trouble With Tribbles - S2-E15

Revealing mistake: When Kirk finds his position on the bridge occupied by the Tribbles, he calls for Dr. McCoy, and as he arrives, Kirk thrusts some of the Tribbles under his nose. In the shots where Kirk's face is seen, one of the Tribbles he is holding features a visible seam.

Devil in the Dark - S1-E26

Revealing mistake: A straight and level seam connecting the top and bottom halves of the tunnel Spock is crawling through is visible.

Scott215