Star Trek: The Original Series
Star Trek is an American science fiction
Science fiction
Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities...

 television series created by Gene Roddenberry
Gene Roddenberry
Eugene Wesley "Gene" Roddenberry was an American television screenwriter, producer and futurist, best known for creating the American science fiction series Star Trek. Born in El Paso, Texas, Roddenberry grew up in Los Angeles, California where his father worked as a police officer...

, produced by Desilu Productions
Desilu Productions
Desilu Productions was a Los Angeles, California-based company jointly owned by actors Desi Arnaz and Lucille Ball, who were married to each other from 1940 to 1960....

 (later Paramount Television
Paramount Television
Paramount Television was an American television production/distribution company that was active from January 1, 1968 to August 27, 2006.Its successor is CBS Television Studios, formerly CBS Paramount Television...

). Star Trek was telecast on NBC
The National Broadcasting Company is an American commercial broadcasting television network and former radio network headquartered in the GE Building in New York City's Rockefeller Center with additional major offices near Los Angeles and in Chicago...

 from September 8, 1966, through June 3, 1969. Although this television series had the title of Star Trek, it has acquired the retronym
A retronym is a type of neologism that provides a new name for an object or concept to differentiate the original form or version of it from a more recent form or version. The original name is most often augmented with an adjective to account for later developments of the object or concept itself...

 of Star Trek: The Original Series (Star Trek: TOS or TOS) to distinguish the show within the media franchise that it began
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...


Damn it, Jim! I'm a doctor not a... - Leonard McCoy|Leonard McCoy

McCoy had several lines of this sort, except that he never said "damn it". Only two "swear words" were used on the original Star Trek series (prior to the films); "hell", uttered on only a couple of separate occasions, such as Kirk "Let's get the hell out of here" (City on the Edge of Forever); and "bloody", uttered by intergalactic con-man Harry Mudd (I, Mudd).

You're dead, Jim. - Leonard McCoy

McCoy had several lines of this sort, but he never said "You're dead" to Kirk. This is often attributed when it appears that Kirk dies, particularly in "Amok Time|Amok Time" and "The Tholian Web|The Tholian Web".