Complex sentence: Gubba had commentated on all 8 series of ITV's "Dancing on Ice" from 2006 to 2013, providing a round-up of the performances and trivia about the celebrities and their skating partners.
Split into simpler sentences: Gubba had commentated on all 8 series of ITV's "Dancing on Ice" from 2006 to the most recent series in 2013. On this programme he provided a round-up of the performances and gave some trivia about the celebrities and their skating partners.