Trials and Tribble-ations - S5-E6
Corrected entry: During the roll call for the fight on the space station, some of the officer's shirts are different colors than the shirts used when they filmed the roll call in the original series.
Trials and Tribble-ations - S5-E6
Corrected entry: When Kirk comes onto the bridge, and discovers the Tribble in his chair, he sits down, and hits the Comm button to call McCoy. It makes a sound that signifies the channel's open. In the original shot in TOS, the button only clicked, with no extra sound added.
Correction: O'Brien is posing as an engineer in this timeline. He could have been called upon to actually fix something, freeing up an engineer that wasn't available in the original timeline to fix a low-priority problem like the Captain's bridge comms not beeping right.
Correction: This entry should be removed since there is no mistake in the context of the episode itself but only in context to the episode of the Original Series. Neither O'Brian nor Bashir were in the original lineup and those two are the only ones whose shirt color changes.
HTH