They've done dozens of shows together, but Oprah and Nate Berkus have never had a conversation like this. Tune in Sunday, April 28, as Nate discusses coming out, the cancellation of his talk show, losing the love of his life in the tsunami and his new book, The Things That Matter, in a two-part interview. Watch the encore presentation of part 1 at 11 a.m. ET/PT. Part 2 airs at noon ET/PT.