Revealing mistake: In the shot following the Galaxy-class "tag team" on a Cardassian ship, a Miranda-class ship can be seen swooping right to left and then suddenly freezes due to a rendering error.
Visible crew/equipment: When everyone returns to DS9, Worf and Jadzia reunite and kiss. Then, in the next shot, just as O'Brien calls out to Quark, there's a visible T-mark on the floor. (00:42:15)
What You Leave Behind (2) - S7-E26
Quark: The more things change, the more they stay the same.
If Wishes were Horses - S1-E16
Trivia: Buck Bokai's baseball card, a collectible featured on Benjamin Sisko's desk, had actor Keone Young on the front, in character, but showed "Trek" model maker Gregory Jein, who invented the "history" of the character, on the back. The pair bore an uncanny resemblance to each other.
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?