Complex sentence: Nickelodeon later aired Kenan and Kel a series that focused around the antics of 2 teenagers living in Chicago, this series was also popular and ran for 4 years and reran on Nick for a long time.
Split into simpler sentences: Nickelodeon later aired Kenan and Kel, a series that focused around the antics of 2 teenagers living in Chicago. This series was also popular and ran for 4 years and reran on Nick for a long time.