Transcript for BBC to release investigation findings into infamous 1995 Princess Diana interview
First we have the investigation into princess Diana's bombshell interview that rocked the royal family 25 years ago. The bbc set to reveal its findings after martin Bashir was found he duped her into doing the interview. James Longman has more. Reporter: Good morning, Michael. It's one of the most famous television interviews of all time when princess Diana told a bbc reporter there were, quote, three of us in this marriage but just how did martin Bashir get that interview in the first place? The bbc investigation is going to find out. Did things come to a head? Yes, slowly, yes. Reporter: This morning all eyes on the bbc as they prepare to release the results of an investigation into just how martin Bashir managed to scoop the world in that controversial 1995 interview with Diana, princess of Wales. The big question, was she duped into doing it? This phrase on Charles' affair with Camilla parker Bowles living oninfamy. Well, there were three of us in the marriage so it was a bit crowded. Reporter: Diana also pulling back the curtain on motherhood, her personal battle with an eating disorder and her thoughts on her estranged husband, the heir to the throne. Do you think the prince of Wales will ever be king? I would think that the top job as I call it would bring enormous limitations to him and I don't know whether he could adapt to that. Reporter: The exclusive sit-down with martin Bashir aired 25 years ago and was watched by nearly 23 million people but now after concerns surfaced last year over how Bashir and the bbc secured it the network is set to reveal the findings of a recent internal independent investigation conducted by lawyer lord Dyson. If there was new information that changes the dynamic in which she made the decision to do that interview, then for many people and for the record it is very important that that is established and that that is known and made public. Reporter: Diana's brother alleging Bashir used forged bank statements to suggest that two employees were being paid to gather Intel on the princess, a betrayal he says convinced Diana to do the interview. Now Spencer is demanding answers opening up to uk's itv about the responsibility he feels towards his sister. I feel it's my duty to stand up for her when I can. She left me as guardian of her sons so I feel there was a trust passed on so, yeah, I feel very passionately I have a role to honor her memory. Reporter: The interview sent shock waves around the world forever changing the monarchy. In November prince William was among those supporting the investigation calling the official inquiry a step in the right direction and adding that it should help establish the truth behind the actions that led to the panorama interview. The bbc meantime, postponing their planned investigative program delving into it set to air Monday and told ABC news it was delay to a significant duty of care issue. Bashir stepped down this week from his position at the bbc due to ongoing health issues. The results of this investigation could come this week. The bbc has previously apologized for the use of those allegedly forged bank statements but insisted they played no part from princess Diana's decision to do the interview in the first place, Michael. It opened a lot of eyeballs. Thank you so much.
This transcript has been automatically generated and may not be 100% accurate.