Complex sentence: AMC approved the series pilot on March 9,2015, with a two-season commitment; the first season consists of six episodes, while the second season comprises 15 episodes, to air in 2016.
Split into simpler sentences: AMC approved the series pilot on March 9,2015, with a two-season commitment. The first season consists of six episodes, while the second season comprises 15 episodes, to air in 2016.