Prince Charles, Prince William and Prince Harry get candid in new documentary

In a new documentary, Prince Charles invited cameras into his private life to give royal fans a rare glimpse into his world. When Ant and Dec Met the Prince: 40 Years of the Prince's Trust, which aired in the U.K. on Jan. 4, highlights the prince’s charity work and features appearances by Charles’s loved ones, including his sons Prince William and Prince Harry, along with his wife, the Duchess of Cornwall. The program was hosted by British television personalities Ant and Dec.

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Along the way, there were plenty of heartfelt moments as the Prince of Wales's sons spoke in a candid interview to Ant and Dec, ambassadors for the Trust, about their family lives away from the spotlight and their relationship with their "pa."

William, 33, said the births of his two children had given him a different perspective on life, and described two-year-old George and seven-month-old Charlotte as "good as gold, honestly."

He also revealed how his brother Harry pops around to see him and his wife Kate at Kensington Palace and, like a typical little brother, "scrounges food off us and things like that."

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Harry, 31, also opened up about enjoying being so close to his nephew, Prince George. He told Ant and Dec, "I can always hear the wheels of those plastic tractors that George loves playing on."

He added that he loves being neighbours with his brother and having the office at home, and that it's the only peace and quiet they get. "It's really nice to be able to live next to each other and be neighbours," he said of their London base, where the royal brothers were also brought up by Charles and Diana.

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Charles's sons weren't the only ones to praise him. Camilla also had some kind words to say about her other half. "I'm really proud to be married to somebody who 40 years ago, aged 27, had the vision to put it together. It was an incredible idea then.

"He cares so much about these young people," she added.

Charles also revealed his tender side. While he referred to Camilla as "my darling wife," he also revealed he loves being a grandfather, and that he missed his own, King George VI, who died when Charles was just three and a half years old.

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