In 2002, Williams was the builder in the show Room for Improvement which was shown on the Seven Network, and in 2003, he was announced Australia's Celebrity Worst Driver which was shown on the Seven Network.

In 2005, he hosted the fifth season of The Mole — The Amazing Game however some fans have called for the return of former host, Grant Bowler. With the new series, Williams brought the concept of live eliminations, from Seven's Sydney studios in the city.

In April 2009, Williams relieved as sport presenter on Nova 969 during Merrick & Rosso with Kate Ritchie, whilst Marto was having surgery.

In 2010, Williams co-hosted Australia's Greatest Athlete with Mark Beretta.