Obama: 'I Don't Think About Sarah Palin'

The World Pays Tribute to Nelson Mandela

Act 1: Both powerful and ordinary people gathered across the world to remember Mandela's legacy.

The View from Johannesburg

Act 2: ABC News' Alex Marquardt describes the scene of mourning and celebration in South Africa.

Life in Prison on Robben Island

Act 3: ABC News' Alex Marquardt describes the scene of mourning and celebration in South Africa.

Mandela's Rise After His Prison Release

Act 4: The former political prisoner becomes president and raises AIDS awareness in his final years.

The Rugby Match That Inspired Invictus

Act 5: A look at the Rugby match that was the emblematic moment of reconciliation in South Africa.

The Private Life of Nelson Mandela

Act 6: His personal and family life as told by his daughter and two grandchildren.

Mandela's Final Chapter: The Fight Against AIDS

Act 7: In the last decade of his life, Nelson Mandela fought for AIDS and HIV awareness.

The Youngest Voices of Hope

Act 8: Children around the world share what Nelson Mandela means to them in different languages.

President Obama and First Lady Address Criticism

Act 1: President and first lady talk low approval ratings and being booed with ABC's Barbara Walters

What the Future Holds for the President, First Lady

Act 2: With 3 years left, the Obamas talk their daughters growing up and life after the White House.

First Ladies Throughout the Years

Act 3: Barbara Walters recalls her memorable moments with the first ladies through the decades.

Presidential Crises and Scandals

Act 4: From Nixon to Bush, Barbara Walters takes a look at her unforgettable presidential interviews