Deeley became the presenter of Stars In Their Eyes from 2003 to 2006, taking over from Matthew Kelly.
Since 2006, Deeley has been the host of So You Think You Can Dance in the United States, for which she has been nominated five times for a Primetime Emmy.
In 2011, Cat presented the series Royally Mad for BBC America.
In 2012, Cat presented the launch show for ITV's Soccer Aid appeal on the Friday before the Soccer Aid match.
In April 2011, Deeley presented an episode of CNN's Icon and chatted to The Simpsons voice actress Nancy Cartwright.