Star Trek: Deep Space Nine (1993)

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)

What You Leave Behind (2) - S7-E26

Quark: The more things change, the more they stay the same.

Valiant - S6-E22

Trivia: Valiant was the original working name for the USS Defiant when it was being designed for the show.

roboc

Emissary (1) - S1-E1

Question: Did Nana Visitor's hairstyle change from her first appearance in the episode to the next scene when they were going down the stairs?