Prince Harry and Meghan Markle are looking back at their childhood memories of Disneyland - and what it was like to take their children, Prince Archie and Princess Lilibet, earlier this year. The Duke and Duchess of Sussex took part in ABC's The Happiest Story on Earth: 70 Years of Disneyland - Special Edition of 20/20, which aired on Sunday, September 21, detailing their June trip to Disneyland for Lili's 4th birthday.