High Quality Content by WIKIPEDIA articles! "The Hounds of Baskerville" is the second episode of the second series of the BBC crime drama series Sherlock, which follows the modern-day adventures of Sherlock Holmes, and was first broadcast by BBC One on 8 January 2012. It was written by co-creator Mark Gatiss, who also portrays Mycroft Holmes, Sherlock`s brother in the series, and was directed by Paul McGuigan. The episode is a contemporary adaptation of The Hound of the Baskervilles, one of Sir Arthur Conan Doyle`s most famous works.