Complex sentence: Famously, Pete Waterman said that the idea for "The Hitman and Her" came to him when he turned on the TV late one night and the only TV station still on-air was featuring guest Elvis Costello talking about Irish politics.
Split into simpler sentences: Famously, Pete Waterman said that the idea for "The Hitman and Her" came to him when he turned on the TV late one night. The only TV station still on-air was featuring guest Elvis Costello talking about Irish politics.