Piers Morgan is heard saying that Meghan and Harry's popularity as as "royal rockstars" was "not a good thing" in the latest instalment of their bombshell Netflix series.
The former GMB presenter, who is a well-known critic of the Duchess of Sussex, warns in the documentary of the Duke and Duchess of Sussex becoming a "bigger couple" than William and Kate.
In the fourth episode, Harry and Meghan recall their increasing popularity with the press and public - and the affect it had on the royal household.
"Putting aside what I think about her, right, she's becoming a royal rockstar," Piers Morgan is heard saying. "Bigger, I would argue, as a couple than William and Kate. That's probably not a good thing in the long term."
While Prince Harry says: "The issue is that when someone is marrying in who should be a supporting act is then stealing the limelight or is doing the job better than someone who is born to do this, that upsets people, it shifts the balance.
"Because you're led to believe that the only way you can succeed and your charities can succeed, can be grown, can be improved is if you're on the front page of those newspapers."
He recalls the "penny finally dropping" for her was when they spent the night at Buckingham Palace after attending a Remembrance Day event with a number of senior royal family members.
The next morning, the couple had breakfast set up and on the front page of the Telegraph had been Meghan.
"She went, 'but it's not my fault'," Harry says. "And I was like, 'I know, my mum felt the same way.'"
A clip then aired of Diana speaking to Bashir about the jealousy she had witnessed by 'stealing the limelight' from the now King Charles in Australia.
“Now, if you are a man like my husband, a proud man, you mind about that if you hear it every day for weeks and you feel low about it," she said.
Asked whether she had been flattered by the media attention, she said: "No, not particularly because with the media attention came a lot of jealousy, a great deal of complicated situations arose because of that.