Entertainment Tonight Presents… ET Vault Unlocked: Oprah! ET’s five decades of never-before-seen interviews. From talk show host to the actress and icon, what you never knew about Oprah. Plus, her life’s biggest regret. ET on set of her 35 acting gigs. And, why she feared being fired from “The Color Purple.” Plus, the stories from Oprah and Gayle King’s 47-year friendship. How they met will surprise you. And, Oprah’s 37-year romance with Stedman. Their brief engagement and why they called off the wedding.