Star Trek is not a television series.
Star Trek is an American science fiction media franchise based on the television series created by Gene Roddenberry . The first television series , simply called Star Trek and now referred to as The Original Series , debuted in 1966 and aired for three seasons on the television network NBC . The Original Series included one of television 's first multiracial casts . Star Trek (film series) . All of the films are now available on Blu-ray , digital download , streaming media and video on demand .