In a promotional clip ahead of Sunday's interview, Tom Bradby puts difficult questions to Prince Harry about privacy.
TOM BRADBY: Some people will say You have railed against invasions of your privacy all your life. But the accusation would be, here are you invading the privacy of your most nearest and dearest without permission. That will be the accusation.
PRINCE HARRY: That would be the accusation from the people that don't understand, or don't want to believe that my family have been briefing the press.
TOM BRADBY: If you're invited to the Coronation, will you come?
PRINCE HARRY: There's a lot that can happen between now and then. But the door is always open. The ball is in their court. There's a lot to be discussed, and I really hope that they are willing to sit down and talk about it.
TOM BRADBY: Do you still believe in the monarchy?
PRINCE HARRY: Yes.
TOM BRADBY: Do you believe you will play a part in its future?
PRINCE HARRY: I don't know.