At the end of 2006, O'Loughlin moved from the Seven Network and replaced Leith Mulligan who moved to Fox Sports News.
O'Loughlin has previously worked for Seven News as a reporter. He started work with the Seven Network in production roles behind the scenes and after learning how the industry worked off-camera, O'Loughlin pursued a journalism cadetship with the newsroom. After completing his cadetship and six years of reporting general news for the network.
As an athlete Heath was a member of the national volleyball team and was headed to the Olympics, but left the team to pursue his career in journalism. He plays basketball, AFL football and boxing.
O'Loughlin will finish at National Nine News when his contract ends in December, to take on a new direction at North Melbourne Football Club. He will be replaced by Grant Hackett