A Special Edition of 20/20," hosted by country music icon Luke Bryan, Peyton Manning and Lainy Wilson. Filmed in Las Vegas, the special provides an exclusive behind-the-scenes look at some of country music's top stars in the lead-up to "The 58th Annual CMA Awards." Country Music's Biggest Night which airs live from Nashville. 

ABC News Studios presents a two-hour documentary event, "The Untold Story of Mary Poppins: A Special Edition of 20/20," commemorating the 60th anniversary of what is long considered Walt Disney's crowning motion picture masterpiece, "Mary Poppins." Chock full of rarely seen footage, photos and stories from the film's living legends, this diamond anniversary presentation promises to be a sweet remembrance of the enduring, first-of-its-kind movie magic, the irresistible songs, and the iconic character who touched the world.