Doctor Who: Time Lords celebrate 50 years

Three Time Lords emerged from the Tardis in Auckland to meet the media and celebrate 50 years since the Doctor Who series first screened in the UK and NZ. The sixth doctor Colin Baker, Sylvester McCoy the seventh, and number eight Paul McGann explain the longevity of the series and the voice of the Daleks Nicholas Briggs answers the question: Why are the Daleks so frightening to children?