Julian Fellowes

On the hit PBS Masterpiece series, the social rules the characters have always known are changing as the world events of the 20th century unfold. The series' creator, Julian Fellowes, says his relatives who lived through that era inspired his lasting interest in class.

Downton Abbey is the most popular drama in the history of public television. And when the whole of the TV universe is fragmenting, that isn't just impressive — it's almost impossible. Critic David Bianculli ponders the hit show's unlikely success.