On 23rd November 1963, the first episode of one of the world's best loved TV sci-fi programmes was shown.
But the BBC's debut of Doctor Who was tragically overshadowed by the assassination of US President John F Kennedy.
Lucy Burns speaks to Carole Ann Ford, who played the Timelord's grand-daughter, Susan.
Presented and produced by Lucy Burns.
First broadcast on BBC World Service November 2013.