Complex sentence: In April 2010 NBC announced that season 1 of the show would be extended by a further three episodes, and also committed to a second 13 part season of the comedy format, which will debut in autumn 2010.
Split into simpler sentences: In April 2010 NBC announced that season 1 of the show would be extended by a further three episodes. Soon after they committed to a second 13 part season of the comedy format, to debut in autumn 2010.