Complex sentence: In 2015 the show welcomed Denise Drysdale as its fifth co-host and on 12 October 2016 it came in second on the OzTAM TV ratings.
Split into simpler sentences: In 2015 the show welcomed Denise Drysdale as its fifth co-host. On 12 October 2016 it came in second on the OzTAM TV ratings.