Some TOS episodes were based on classic scifi stories, like "Voyage of the Space Beagle". Also, Roddenberry employed established scifi authors like David Gerrold to script episodes.
An annoying facet of ST episodes is the morality lessons they push, like on every episode of The Brady Bunch.
An annoying facet of ST episodes is the morality lessons they push, like on every episode of The Brady Bunch.