The Duchess of Cambridge is expected to host the carol concert as the Duke watches on from the audience.

"And things are likely to get a lot worse between the Royal Family and the BBC before they get better as the second part of the documentary threatens to go further."

The reported snub comes after the royals issued a furious statement to the BBC for giving credibility to "overblown and unfounded claims" in the documentary on Monday which looked at the relationship between William, Prince Harry and the press.

The latest dose has been Amol Rajan's new BBC documentary The Princes And The Press, exploring the different ways Prince William and Harry engage with the media.

The three senior royal households- Buckingham Palace, Clarence House and Kensington Palace- have issued a statement criticising the broadcaster for "giving credibility" to "overblown and unfounded claims" This is significant for the BBC, who are well aware royal documentaries generate guaranteed coverage and attention, as is playing out.

The first episode of the two-part documentary examined the relationship between the media and the Duke of Cambridge and the Duke of Sussex.

"A free, responsible and open press is of vital importance to a healthy democracy," said the joint statement.

Insiders said the rift between William and Harry (pictured here with Meghan and Kate in 2020) will be examined in even greater detail in next week's instalment. Royal advisers believe the Queen, Charles and William have not been offered a proper right to

The documentary, using first-hand testimony from correspondents, looked at suggestions of briefings and counter-briefings, and whether negative stories about the royals were based on information from people connected to other royal households.

The film also showed the extent of the threat to privacy from a press hungry for stories about the younger royals.

They are figures of public interest, partially because their power is so ambiguous.

The Royal Family have been less than impressed, with the Queen said to be unhappy and reportedly joining with Prince Charles and William in threatening to boycott future projects with the corporation.

The Queen has been under doctors' orders to rest after spending a night in hospital in October (Image: GETTY)

The Palace have complained about no right of reply, which would allow them to respond to allegations, and not being shown a preview of the documentary.

Their wealth, reported as $ 88billion ( £65.9bn ) in 2017, and vast land ownership, offers them immense power in decision-making.

Given the Prince of Wales ’ outspoken campaigning on climate change, nobody would be surprised if he lobbied future governments on environment measures as king.

The means by which Martin Bashir obtained an interview with the late Princess Diana were an anathema to good journalism ( even though Diana said she had 'no regrets' about the interview ).

The Princess Royal is known for being hardworking (Image: GETTY)

Amol Rajan is a superb journalist- one of the BBC's finest.

*The Princes And The Price concludes next week on BBC One.

There was a blink-and-you-miss-it moment at the end of the BBC's much hyped documentary about the royals which any impartial viewer might consider a trifle more important than its position, shoehorned into the programme just before the credits rolled.

It also said it was 'disappointing' that the BBC had chosen to air allegations surrounding Harry and Meghan's controversial exit from Britain.

Journalist Omid Scobie (pictured), co-author of the controversial biography of the Sussexes, Finding Freedom, meanwhile said negative stories had been leaked about Meghan, although he did not name those involved. 'There were some people who felt she [Megh

Ex-BBC royal correspondent Peter Hunt said he believed aides would have briefed against other royals 'with the knowledge of whoever they were working for '.

I think by leaking a negative story, that's punishment '.

More pertinently, Mr Scobie was not asked about his own relationship with the duchess.

But surely the biggest fault-line running through the programme was the BBC's own complicity in controversial royal coverage and the absence of any mention of the Martin Bashir saga.

In the strongly-worded joint statement given to the BBC ahead of last night's programme, representatives for the Queen (pictured), Prince Charles and Prince William said: 'A free, responsible and open Press is of vital importance to a healthy democracy

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