In the Pale Moonlight - S6-E19
Revealing mistake: As Sisko is threatening Tolar in the simulator, Tolar's prosthetic mask can be seen to bend awkwardly against the wall, as if made of rubber.
In the Pale Moonlight - S6-E19
Revealing mistake: As Sisko is threatening Tolar in the simulator, Tolar's prosthetic mask can be seen to bend awkwardly against the wall, as if made of rubber.

Broken Link - S4-E26
Revealing mistake: During the fight between Garak and Worf near the end of the episode, a Jefferies tube door is knocked out of its frame to reveal the end of the set - a dark room with a wooden scaffold and various other pieces of equipment (slow-mo helpful but not required). (00:36:00)
Trials and Tribble-ations - S5-E6
Question: Wouldn't Sisko have created a paradox by identifying himself by his real name to James T. Kirk before returning to the future?
Answer: No more so than Sisko posing for a photo in the 21st century while pretending to be Gabriel Bell.
Answer: His last name is something Kirk will forget, since he was on temporary assignment and essentially passing through.
Chosen answer: No. He's given his name, that's all. Nothing there that might lead to a paradox. If he's gone into detail about his time travelling, that might cause an issue or two, but simply stating his name does nothing.
Tailkinker ★