CHANNEL NINE have released a teaser trailer of an interview with Malcolm and Lucy Turnbull, where the Prime Minister is set to reveal more about his relationship with Barnaby Joyce.

The trailer posted on Facebook, is the first sign of what 60 Minutes has in store for viewers on Sunday night.

Mr Turnbull and his wife Lucy were interviewed by the program’s veteran 60 Minutes reporter Liz Hayes.

The trailer indicates the couple will discuss “the secret of a good marriage”.

Mr Turnbull is also expected to reveal what he thinks about his Deputy Prime Minister, Barnaby Joyce.

When Hayes asks Mr Turnbull for his view on his relationship with Mr Joyce, he replies: ““It’s frank. It’s a frank relationship.”

The interview’s timing is curious, and comes as Mr Turnbull and Mr Joyce held crisis talks in Sydney today, after their public spat over his affair with former staffer Vikki Campion.

It is understood that Nine filmed the interview with the Turnbulls earlier this year, before news first broke of Mr Joyce’s affair with Ms Campion.

Mr Joyce and Mr Turnbull met at the Commonwealth Parliament Offices in Sydney for over an hour on Saturday.

The meeting comes after Mr Turnbull said his affair was a “shocking error of judgment” causing “a world of woe” that “appalled” all of us at a press conference in Canberra, where he announced a sex with staff ban was now part of the ministerial code of conduct.

Mr Joyce responded on Friday at his own press conference while Mr Turnbull was in Hobart.

He said Mr Turnbull’s comments were “inept”, “hurtful” and “unnecessary”.

It is understood Mr Joyce on Saturday indicated his concern was more about the forcefulness of Mr Turnbull’s comments and less about their substance.

Both agreed to move forward in the national interest according to reports.

Both sides of federal politics have called on Mr Joyce to resign in the wake of the affair scandal. It could also threaten to bring down Mr Turnbull’s government.

Former prime minister Tony Abbott also waded into the public stoush to take a veiled swipe at Mr Turnbull.

“The general rule I always observed was that one party doesn’t give another party public advice,” Mr Abbott told reporters in Melbourne.

“If a member of parliament has something to say to another member of parliament he or she should knock on the door or pick up the phone.”

He also criticised Mr Turnbull’s changes to the ministerial code of conduct banning sexual relations between ministers and their staff.

“There was a perfectly good code of conduct in place,” Mr Abbott said.

Earlier on Saturday, Liberal senator Ian Macdonald called for Mr Joyce to be demoted to the backbench on account of his actions.

“Barnaby would have known it would derail the government’s line, the government’s focus and it really is giving Bill Shorten a free kick,” Senator Macdonald told the ABC.

“Clearly, his path is that he’s got to take a very, very low profile, I hope on the backbench for, you know, a few months.” “It’s just got to end,” he later told Fairfax media.

Labor MP Pat Conroy described the entire scenario as a “soap opera”. “It’s a valiant defence of the indefensible,” he told ABC News. “There’s a massive question to answer. Malcolm Turnbull said on Thursday that Barnaby needed to consider this position. That’s code for saying, I need you to resign.”

However, hope remained for Mr Joyce with Nationals MP Michelle Landry telling The Australian that the Nationals leader had the support of the party room — “at this stage”.

“He is having a week off and then we’ll have our party room meeting Monday after next and we will see,” she said.

Mr Joyce will earn around $8000hile on his week of leave, while Mathias Cormann steps in to be Acting Prime Minister.

Mr Turnbull is set to head off to the US for talks with US President Donald Trump.

The Turnbulls will celebrate their 38th wedding anniversary in late March.