Premiering on 26 September 2001 with a robust opening, the 2-hour pilot "Broken Bow" garnered a 9.9 in a single day score and a 15% share. Ratings, nonetheless, declined over the subsequent few seasons, dipping to an average 2.5 million viewers an episode. As early as the second season, rumors of the show's imminent cancellation pushed the producers to find new instructions to take the series. Starting with the collection' third season, Enterprise adopted a darker tone and a more violent arc, in some ways mirroring the put up 9/11 sentiment. Whereas many critics have been impressed with the new pull of the collection, ratings remained low, and the present was canceled at the top of its fourth season. Even so, Enterprise accomplished a variety of technical firsts for a Star Trek sequence. It was the primary series to air in excessive definition, with "Exile" being the first episode to air in that format. It was produced with third-era Sony HDTV cameras beginning in Season 4