The only debate between Julia Gillard and Tony Abbott this Sunday is likely to be shifted from 7.30pm - its traditional time - as it would coincide with reality TV show MasterChef.
Traditionally, the debate is held on the first Sunday after the election is called, but the ratings winner risks pulling many viewers on Sunday night.
The debate could be aired early, from 6:30pm, to avoid running up against Matt Preston and company on Channel 10 from 7:30pm, the ABC reported.
"We're still talking, we're still working through the details but we can confirm that it will not be broadcast on Sunday night at 7.30," a party official said told The Australian.
Alternatively, it could be held on another night early next week, the Sydney Morning Herald reported.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
Abbott wants three debates
Meanwhile, Opposition Leader Tony Abbott called on Labor to stand by a promise former leader Kevin Rudd made to have three leaders' debates during the election campaign.
During the 2007 campaign Mr Rudd, then Labor leader, committed to three debates the next time round.
"That's what the Labor party promised at the last election," the opposition leader told reporters in Melbourne.
Julia Gillard had been happy to debate him every Friday on the Nine Network's Today show before she took over the top job, Mr Abbott said.
"The prime minister doesn't seem to like debates now that she's the prime minister," he said.
"I call on her, in the name of transparent government, in the name of accountable government, to honour that commitment and to have three debates."
