The first season of The Mighty B! originally aired in the United States on Nickelodeon between April 26, 2008 and June 12, 2009. The season was produced by Nickelodeon Animation Studios, Paper Kite Productions and Polka Dots Pictures, and series co-creators Amy Poehler, Cynthia True and Erik Wiese served as executive producers. The season received generally positive reviews. One reviewer called Bessie the "female answer to SpongeBob SquarePants". 1.92 million viewers among Kids 2-11 watched the series premiere, and the series averaged 3.1 million viewers each episode during the season.