Complex sentence: In 2008, the second season of the band's television series aired, premiering on January 26 in "Sidekicks", it then ended after a 15-episode run with "Polar Bears", which aired on June 6.
Split into simpler sentences: In 2008, the second season of the band's television series aired, premiering on January 26 in "Sidekicks". It then ended after a 15-episode run with "Polar Bears", which aired on June 6.