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Once Upon a Time's first season received 'generally favorable' reviews from critics. Metacritic gave it a score of 66 out of 100 based on 26 reviews. The pilot episode was watched by 12.93 million viewers and achieved an adult 18 -- 49 rating / share of 4.0 / 10. The second season premiered on September 30, 2012, to an audience of 11.36 million viewers, while the third season began on September 29, 2013, opening to 8.52 million viewers. In May 2014, ABC renewed the show for its fourth season, premiering in September 2014 to an audience of 9.47 million viewers. The series was renewed for a fifth season in May 2015 and for a sixth season in March 2016. On May 11, 2017, ABC renewed the series for a 22-episode seventh season. In February 2018, it was announced the seventh season would serve as the final season of the series.
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