President Trump threatened the British Broadcasting Corporation with a $1 billion lawsuit in Florida Monday if it did not retract a news program that featured doctored footage of Trump’s remarks ahead of the Jan. 6, 2021, Capitol riot.

In a letter from Trump’s outside counsel obtained by The Post, the BBC was given until 5 p.m. ET Friday to “retract the false, defamatory, disparaging, and inflammatory statements made about President Trump” in its “Panorama” program that aired Oct. 28, 2024, titled “Trump: A Second Chance?”

“If the BBC does not comply … President Trump will be left with no alternative but to enforce his legal and equitable rights, all of which are expressly reserved and are not waived, including by filing legal action for no less than $1,000,000,000 (One Billion Dollars) in damages,” wrote attorney Alejandro Brito.

“The BBC is on notice.”

“The BBC defamed President Trump by intentionally and deceitfully editing its documentary in order to try and interfere in the Presidential Election,” a spokesman for Trump’s legal team said. “President Trump will continue to hold accountable those who traffic in lies, deception, and fake news.”

BBC Director General Tim Davie and BBC News CEO Deborah Turness resigned after a whistleblower told The Telegraph newspaper last week that the program spliced together two clips of Trump to suggest he had instructed his supporters to storm the Capitol in his now-infamous speech at the Ellipse.

“We’re going to walk down to the Capitol … and I’ll be there with you, and we fight. We fight like hell,” Trump was shown saying.

In fact, those two portions of the speech took place more than 50 minutes apart.

“We’re going to walk down to the Capitol, and we’re going to cheer on our brave senators and congressmen and women, and we’re probably not going to be cheering so much for some of them,” the then-45th president said, adding much later: “We fight like hell. And if you don’t fight like hell, you’re not going to have a country anymore.”

The broadcast also edited out Trump telling his supporters: “I know that everyone here will soon be marching over to the Capitol building to peacefully and patriotically make your voices heard.”

“Due to their salacious nature, the fabricated statements that were aired by the BBC have been widely disseminated throughout various digital mediums, which have reached tens of millions of people worldwide,” Brito wrote. “Consequently, the BBC has caused President Trump to suffer overwhelming financial and reputational harm.”

On Monday, BBC Chair Samir Shah conceded in a statement to a UK parliamentary committee that “we accept that the way the speech was edited did give the impression of a direct call for violent action.

“The BBC would like to apologise [sic] for that error of judgement,” added Shah, who said the goal had been to “convey the message of the speech made by President Trump so that Panorama’s audience could better understand how it had been received by President Trump’s supporters and what was happening on the ground at that time.”

Shah went on to say that the edit “was considered and discussed as part of a wider review of the BBC’s US Election coverage … rather than handled as a specific programme [sic] complaint, given it had not attracted significant audience feedback and had been transmitted before the US election, so the point wasn’t pursued further at that time … With hindsight, it would have been better to take more formal action.”

“The TOP people in the BBC, including TIM DAVIE, the BOSS, are all quitting/FIRED, because they were caught “doctoring” my very good (PERFECT!) speech of January 6th,” Trump posted on Truth Social Sunday as he returned to Washington from a weekend at his Mar-a-Lago resort. “Thank you to The Telegraph for exposing these Corrupt ‘Journalists.’

“These are very dishonest people who tried to step on the scales of a Presidential Election,” the president went on. “On top of everything else, they are from a Foreign Country, one that many consider our Number One Ally. What a terrible thing for Democracy!”

“Panorama,” the BBC’s equivalent of “60 Minutes,” has broadcast several notorious and controversial episodes in the past — most notably Martin Bashir’s 1995 interview with Princess Diana that focused on her separation from Charles, then the Prince of Wales.

In 2020, Bashir was reported to have used forged bank statements to convince the princess to sit for the interview, claiming that people close to Diana had been paid to spy on her. A subsequent inquiry said the BBC had staged a “woefully inadequate” initial investigation after the interview aired and found Bashir guilty of deceit and breaching editorial guidelines.

The episode led to condemnation of the corporation from Diana’s sons, Prince William, then Duke of Cambridge, and Prince Harry, Duke of Sussex.

“What saddens me most is that if the BBC had properly investigated the complaints and concerns first raised in 1995, my mother would have known that she had been deceived,” said William, who claimed that Bashir’s actions contributed to his mother’s “fear, paranoia and isolation” ahead of her 1997 death in a Paris car crash.