Doctor Who: 10 questions about the sci-fi series
BBC program marks 50th anniversary on Nov. 23
Last Updated: Nov. 19, 2013
Doctor Who, the British science fiction TV series chronicling the adventures of a time-travelling alien, celebrates its 50th anniversary this November. The BBC is marking the occasion with a special episode featuring the return of actors from the show's past, as well as guest star John Hurt.
Test your knowledge of the long-running TV series with our (spoiler-free) quiz.