The latest season of The Crown portrays Charles hatching a plan to force the Queen to abdicate, clearing the way for him to sit on the throne, in scenes which have outraged viewers.
While Netflix has added a disclaimer to the award-winning show's latest offering, it's been heavily criticised by people and experts who are concerned viewers will believe all of the events are true.
One episode shows Charles, then the Prince of Wales, calling Prime Minister John Major to his Highgrove home to discuss the future of the royal family.
Charles, played by Jonny Lee Miller, says: "What makes the Conservative party successful? Its instinct for renewal and its willingness to make way for someone younger. For almost 60 years my great-great-grandfather Edward VII was kept waiting in the wings.
"He longed to be given responsibilities but his mother refused. And yet when his time came he proved his doubters wrong and his reign was a triumph."
But Major has rubbished the storyline, labelling it a "barrel-load of nonsense peddled for no other reason than to provide maximum – and entirely false – dramatic impact".
A statement issued by his spokesman states Major wasn't involved in any research for the show, and wasn't even approached to fact check any of the script details.
It reads: "Discussions between the Monarch and Prime Minister are entirely private and – for Sir John – will always remain so. But not one of the scenes you depict are accurate – in any way whatsoever. They are fiction, pure and simple.
"There was never any discussion between Sir John and the then Prince of Wales about any possible abdication of the late Queen Elizabeth II – nor was such an improbable and improper subject ever raised by the then Prince of Wales (or Sir John)."
It also states that the scenes "should be seen as nothing other than damaging and malicious fiction. A barrel-load of nonsense peddled for no other reason than to provide maximum – and entirely false – dramatic impact".
When the Queen passed away in September, Charles said it was a moment he had "dreaded".
He became king immediately, with his Coronation scheduled for May next year. One of his first acts was to appoint his heir, Prince William, the new Prince of Wales. He also handed the Princess of Wales title, last held by the late Diana, to his daughter-in-law, Kate.
Camilla has also become Queen Consort, which the Queen gave her approval to in her Succession Day speech in February.
