High Quality Content by WIKIPEDIA articles! This is an episode list for the science fiction television series Star Trek: The Next Generation, which aired in syndication from September 1987 through May 1994. This is the third television program in the Star Trek franchise, and comprises a total of 178 episodes over the show`s seven seasons. Both the series premiere ("Encounter at Farpoint") and finale ("All Good Things...") originally aired as single two-hour presentations, but have since aired as two one-hour episodes.