The Original Series was a work in progress with two fundamental concepts introduced as retcons late in season 1.

The Original Series' old country doctor, Dr. Leonard "Bones' McCoy, was surprisingly dismissive about his patients in one ...

If you're a "Star Trek" fan, there's only one episode you should be watching this Thanksgiving: "Charlie X." Here's why it's ...

First aired late in Season 1, “Space Seed” introduces Khan Noonien Singh, a genetically engineered tyrant from Earth’s past, who is found in stasis and quickly tries to take over the Enterprise.

“To boldly go where no one has gone before.” The closing lines of Star Trek: The Original Series rousing monologue summed up the ethos of the show perfectly: bold exploration and endless possibility.

There is no Star Trek franchise without Star Trek: The Original Series. Yes, it’s a simplistic statement, but without the series' uniqueness and its challenge of conventional social norms, it would ...

Over the years, Star Trek: The Original Series' Captain Kirk (William Shatner) has earned a reputation as a womanizer and a man of action. While the former isn't an entirely fair statement, there's ...