The comedy duo's show on 101.9 Fox FM dropped 3.1 points to 11.7 point market share in the coveted drive slot - putting Smooth FM's drive show within spitting distance.

Hamish and Andy have been busy filming their new TV show, pre-recording their drive slot and opting for a from-the-archives format. The pair announced last year that they would be leaving radio at the end of 2017.

In the breakfast timeslot, 3AW's show continues to mow down the competition despite a small drop in audience share. Just over 18 per cent of Melbourne radio listeners tune in to Ross and John's widely popular show on any given weekday.

The ABC's 774 program continues to be Neil Mitchell's closest rival, with John Faine's show snapping up a 11.3 point slice of the morning market.

But on the FM bandwith Nova 100 has managed to lift its breakfast audience by 1.7 points, taking them to the number one FM breakfast spot. It's a huge effort for hosts Chrissie, Sam and Brownie, who entered the hotly-contested breakfast market last year near the bottom of the ladder.

Eddie McGuire's Triple M breakfast show, meanwhile, pipped rival Fox FM to just nudge into second place - with Fifi, Dave and Fev dropping to third.

Overall, Smooth 91.5 was the most popular FM station with Melburnians with Fox FM nipping at its heels.

Peter Colosimo, general manager of Nova Melbourne, described Chrissie, Sam and Brownie's taking out the number one breakfast slot after starting out as the new kids on the block just 12 months ago.

"Consistency is the key," he said. "We pride ourselves on building things steadily. If you look at the Nova breakfast show, we had steady increases all last year... we felt this big leap coming."

Colosimo said the next big priority will be improving Nova's workday offering to make sure there is strong audience growth across the board.

"Our three priorities are consistency in the breakfast show, getting our work day [timeslots] to improve and continuing the growth of Kate, Tim and Marty [on drive]," he said.

KIIS and Gold FM's national content director, Duncan Campbell, admitted there some challenges ahead for KIIS, but overall he was happy with the steady growth of its breakfast show. Hosts Matt and Meshel recorded a very slight bump in listeners and are eyeing-off their closest competitors Smooth FM.

"The challenge for us is to create levels of stickiness for listeners that drive share growth," he said. "That means continuing to focus on other key elements, which means day listening and also Hughsey and Kate in the drive market."

For sport lovers, SEN's attempts to revamp its breakfast show by appointing the much-maligned AFL and media personality Garry Lyon, sports commentator Hamish McLachlan, Essendon legend Tim Watson and The Age's Sam McClure has got off to a shocking start.

Launching the new line-up on January 30, the latest radio survey returned a drop of 1.1 per cent in audience, from 3.8 per cent to 2.7 per cent (the kind of numbers that MAGIC 1278 commands). Even the once floundering ABC FM (not be confused with 774 ABC) clawed back above 3 per cent, alongside 3RN.

In a clear audience revolt, SEN's breakfast ratings were particularly hard hit - dropping 1.3 per cent, down from 3.8 to 2.5. To put this in perspective, SEN's former breakfast team commanded a 3.8 per cent share (which grew 0.2 per cent, with SEN overall fairly steady at 3.5 per cent) this time last year.

At the time of the launch, 1116 SEN's chairman John Bertrand said he believed Garry, Tim and Hamish would usher in "a new era for SEN"; just not the era he was expecting.

- with Aja Styles