He made his first footsteps into television in the 1990s as a reporter co-presenting TV2's Newsnight alongside Simon Dallow and Alison Mau, but it was a 2003 episode of travel show, Intrepid Journeys, that set him on a new broadcasting path.
Since then the longtime talkback radio host has won acclaim and awards for Off the Rails, which chronicles his journey along New Zealand's railway lines, and he spent a month in Antarctica for the series, Ice.
He began his long career in talkback by presenting a show on student station Radio B (now 95bFM), where he worked alongside Eating Media Lunch co-creator Paul Casserly.
Lush moved to Southland in 2002 to host the breakfast show on Foveaux FM, but left the station in 2004, and in 2005 began presenting an evening talkback programme on the newly established Radio Live.
Lush was a candidate at a 2021 by-election for the Invercargill City Council caused by the resignation of deputy mayor Toni Biddle.