ET looks back at its first behind-the-scenes interview with the cast of 'Mighty Morphin Power Rangers,' a celebration of the pop culture phenomenon's 30th anniversary. Amy Jo Johnson, David Yost, Walter Jones, Austin St. John and Thuy Trang chatted with ET on the set in 1993, sharing their excitement for the childrens' TV series and explaining how each episode will have a positive message for kids. Source