Yeah... it might have been the TV show Enterprise. If so, it has to be one of the ones in the Fan Collector series though (the one about the Borg or the two parter in the parallel universe, most likely), as those are the only episodes of that particular show I ever saw after the first few episodes - which I thought were so rotten that I gave up on the entire series in general.
And oh yeah I know what you mean by originality. Time and again I have written stories that were original as far as I knew only to see the same ideas actually used on a TV show on some later date.
I evenb once created a fictional creature known as a vampirate back when I was a kid (in fact I imagined the real life 19th century pirate Jean La Fitte to be one for God knows what forgotten reason after I saw the 1958 Yul Brynner movie The Buccaneer), only to see that name and concept used in a series of children's books (a great many) years later. Don't know how successful the books were were, but regardless it means now *I* can never use that name and concept without being accused of plagarism! **ARRHH!!!**