premise: The Eighth Doctor has only ever been a comedy character.
hypothesis: Anji Kapoor , or simply Anji , is a fictional character in the Eighth Doctor Adventures , a novel series based upon the British science fiction television series , Doctor Who . The Eighth Doctor is an incarnation of the Doctor , the protagonist of the BBC science fiction television series Doctor Who . The Past Doctor Adventures ( sometimes known by the abbreviation PDA or PDAs ) were a series of spin-off novels based on the long running BBC science fiction television series Doctor Who and published under the BBC Books imprint .