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“Mirror, Mirror”
first appearance of the Mirror Universe; although aired one week before “The Apple,” was produced after that episode; aired 6 Oct 1967See It in Context on the Continuity Pages:
Classic Era: Five-Year Mission (1966-1969, 1973-1974)
The original series, created by Gene Roddenberry, lasted three seasons (1966-1969), although it was almost cancelled at the end of its second season and was reportedly saved only through a letter-writing campaign. But the show,… [more]
