Complex sentence: It is based on podcasts and audiobooks of the same name which premiered on February 19,2010, on the American channel HBO and on the British channel, Channel 4 on Friday 23 April 2010.
Split into simpler sentences: It is based on podcasts and audiobooks of the same name. The show premiered on February 19,2010, on the American channel HBO and on the British channel, Channel 4 on Friday 23 April 2010.