Diana, Princess of Wales with Prince William, right, and Prince Harry outside St George’s Chapel in Windsor Castle The Royal Family walk behind Diana’s coffin The Archbishop of Canterbury, Justin Welby, has urged broadcasters to treat religion seriously It follows a plea from the Archbishop of Canterbury, Rt Rev Justin Welby, last year for broadcasters to treat religion with “the same seriousness” that it treats politics, economics or drama. BBC broadcaster Roger Bolton, writing in a piece entitled”Why isn’t the BBC taking religion seriously”, has previously argued: “How can young people and immigrants to this country understand the UK without learning of the crucial role Christianity has played in the formation of its political structures and culture?” “It was beautiful at the same time, and it was amazing, now looking back at it, it was amazing that our mother had such a huge effect on so many people.”When you’re that young and something like that happens to you I think it’s lodged in here, there, wherever – in your heart, in your head and it stays there for a very very long time. “I think it’s never going to be easy for the two of us to talk about our mother, but 20 years on seems like a good time to remind people of the difference that she made not just to the Royal Family but also to the world.” Nigella Lawson “I think an element of it is feeling like we let her down when we were younger. We couldn’t protect her. “We feel we at least owe her 20 years on to stand up for her name and remind everybody of the character and person that she was. Do our duties as sons in protecting her.”Prince Harry added: “When she died there was such an outpour of emotion and love which was quite, which was shocking. Diana and her sons in 1995 Claudia Winkleman hosts a makeover show Lucy Worsley A spokesman said of the show, announced last night as part of the BBC’s news Factual season: “From opening fetes to marrying local couples, vicars are knitted into the fabric of country life, acting as a pillar of support in times of crisis and personal sorrow.”Other shows include Earth from Space, broadcasting images of the planet from cameras in orbit, a makeover show hosted by Claudia Winkleman, and a documentary following Miriam Margolyes around Middle America to explore its politics. The Duke of Cambridge and Prince Harry are to speak for the first time in detail about the moment they heard news of their mother’s death, saying they feel it is their duty to share what really happened to protect her memory.The brothers, who were 15 and 12 when Diana, Princess of Wales died, will speak candidly about the week following the Paris car crash, for a 90-minute documentary on the BBC.In a clip of the show broadcast at a BBC reception, the Duke said they had wanted to take part after feeling they had let her down by failing to protect her in life. “Part of the reason why Harry and I want to do this is because we feel we owe it to her,” he said. In programmes designed to appeal to older audiences, a new cohort of famous senior citizens will return to the Real Marigold Hotel, and notable public figures will debate “Britain’s Greatest Invention”.Nigella Lawson returns with a new at-home cookery show, and Anne Robinson explores the nation’s views on abortion. A series of programmes will tell the story of the Partition of India on its 70th anniversary.In an unusual commission for BBC Four, Lucy Worsley will host a recreation of a fireworks display designed for Elizabeth I. The programme, announced last night as part of the BBC’s new factual season, will “tell the inside story of the tumultuous and unprecedented week that followed the death of Diana, Princess of Wales, and explore how she came to have such an extraordinary effect on the nation and people around the world”, a spokesman said.It joins a season of factual programming ranging from the real life of vicars to fireworks seen by Elizabeth I.The BBC announced its coming documentaries will include a six-part show, A Vicar’s Life, described as a “ heart-warming, observational series” showing life “at the heart of the rural community”. Alison Kirkham, controller of factual commissioning at the BBC, said: “Count on us to provide a place for difficult issues and joyous passions to sit beside each other; to embrace complexity and authorship; and to take creative risks and back specialism.“There are programmes that open our eyes to the world, that show us what has never been seen and take us to places we have never been . . . and that entertain and inspire us.“But there are also commissions that interrogate some of the big issues facing our society today . . . programmes which will be bold enough to ask challenging questions, spark tough debate and target real change.” Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.