Trivia
Denise Crosby was originally cast to play Counselor Troi, and Marina Sirtis was cast as a security chief named Lt. Macha Hernandez. Shortly before filming the pilot, the two switched roles and the security chief's name was changed to Lt. Natasha Yar.
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Tim Russ, later to play Tuvok on "Star Trek: Voyager" (1995), was a candidate for the role of Geordi.
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The corridor, engineering, transporter room, and battle bridge sets were derived from sets originally built for the first four Star Trek movies. A majority of the sets also served as different locations on the Enterprise-A in the fifth and sixth Star Trek films.
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The ceiling of the transporter chamber on the Enterprise D is in fact the floor of the transporter chamber from the Enterprise in the original series.
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The original version of the Starfleet uniform was very uncomfortable for the actors, leading to a change of design from one-piece to a two-piece outfit in Season Three. Although the new uniforms were easier to wear, the jackets had a tendency to "ride up" when the actors were sitting down. Patrick Stewart got into the habit of straightening his jacket with a sharp downward tug as he stood up, an action that became known among the cast and crew as "The Picard Maneuver" (from a tactical maneuver mentioned in the show).
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Data's cat "Spot" is a male throughout the history of the show, but is suddenly female in the episode "Force of Nature, and in the episode "Genesis" gives birth to kittens.
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Stephen Hawking is the only person to appear as himself in the series (in a holodeck scene where Data plays poker against Einstein, Newton, and Hawking [Hawking wins]).
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Two characters on the show were named after real people: The alien "Q" was named for Janet Quarton, a British fan; and Geordi La Forge was named after another Trek fan, George La Forge, who was confined to a wheelchair.
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Picard rose to his rank of Captain when his commanding officer aboard the USS Stargazer was killed in battle. A model of the Stargazer can be seen displayed by the back wall in Picard's ready room. The ship itself was shown on "Star Trek: The Next Generation: The Battle (#1.8)" (1987).
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David Gerrold, a writer from the original series, was a consultant and uncredited story editor on the first two seasons. He left in a dispute after a script of his containing two implied gay characters and an allegorical reference to AIDS was pulled from production in the 11th hour. The story, titled "Blood and Fire", was resurrected in 2004 as a non-Star Trek novel by Gerrold.