This is the official Doctor Who 25th anniversary book, marking 25 years of BBC television's longest running and most successful science fiction series. From it's very early beginnings as a 25-minute black-and-white Saturday evening television series for children, Doctor Who has become a national institution and an international success story. With over 110 million viewers in 60 countries, the programme's popularity is almost unparalleled in the history of entertainment.When viewed against the background of competing shows on British TV during the past 25 years - particularly the various American series which have been screened - Doctor Who stands our as a trail-blazer of astonishing originality. Its strength has been its flexibility, for it is not only the Doctor who has changed over the years, but also his companions, the producers and the scriptwriters who have put together what has become a very complex and highly technical series.In this book Peter Haining draws together and analyzes all the elements which have helped retain the vitality and spark of the series over a quarter of a century. John Nathan-Turner, the show's Producer for the last nine years, and Sylvester McCoy, the seventh and most recent regeneration of the Doctor, discuss their views on this remarkable phenomenon and the author reviews the actors and actresses who have portrayed the Doctor Who characters in television, film and stage productions, and the ways in which they have contributed to the development of the various roles.