Celebrate 70 years of Disneyland! The all-new event special, “The Happiest Story on Earth: 70 Years of Disneyland – 20/20 Special Edition” premieres Sunday night, September 21st at 8/7c on ABC Network. Stream on Disney+ and Hulu. #Disneyland70 -- Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G ABC News Digital is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. Download the ABC News app for the latest headlines