Complex sentence: On August 31,2005, after hosting "Call for Help" with Leo Laporte for over a year, Walker announced that he is leaving the show due to an unsatisfactory pay cut in his proposed contract renewal.
Split into simpler sentences: On August 31,2005, after hosting "Call for Help" with Leo Laporte for over a year, Walker announced that he is leaving the show. The reason for his departure is due to an unsatisfactory pay cut in his proposed contract renewal.