Dening was a contestant on the Australian Big Brother Series 4. He entered the house on Day 1 and was evicted on Day 69, finishing 8th. Dening returned to star in Big Brother 5 as part of an All Star Team that went into the house to compete against current contestants for that season. After appearing on Big Brother, Dening appeared in radio advertisements for local Brisbane stations 4 BC, B105 and Triple M. In 2005, Dening became an ambassador for Tourism Queensland, for which he helped to raise awareness of the state.
