Complex sentence: The series quickly became a priority for the American Broadcasting Company (ABC) after the pilot episode tested high with focus groups, resulting in the network ordering 16 episodes and adding it to the 2009--2010 fall lineup days ahead of ABC's official schedule announcement.
Split into simpler sentences: The series quickly became a priority for the American Broadcasting Company (ABC). The pilot episode tested high with focus groups, resulting in the network ordering 16 episodes and adding it to the 2009--2010 fall lineup days ahead of ABC's official schedule announcement.