<Li> A BBC Radio 4 dramatisation starring Clive Merrison and Michael Williams was broadcast as part of Bert Coules' complete radio adaptation of the canon on 9 January 1991 . It also featured Susan Wooldridge as Helen Stoner . </Li> <Li> A one - hour adaptation by an Indian radio channel Radio Mirchi, Kolkata starring Mir Afsar Ali in Bengali language and was broadcast as an episode of series Sunday Suspense on 1 May 2016 . </Li> <Ul> <Li> A half - hour television adaptation starring Alan Napier and Melville Cooper was broadcast as the tenth episode of the NBC Television series Your Show Time on 25 March 1949 . </Li> <Li> The pilot episode of the BBC's 1964--1965 series Sherlock Holmes was a new version of "The Speckled Band", airing in May 1964 as part of the Detective anthology series . The episode was written by Giles Cooper, was directed by Robin Midgley, and starred Douglas Wilmer as Holmes, Nigel Stock as Watson and Felix Felton as Roylott . </Li> <Li> "The Speckled Band" was adapted for the screen in the USSR in 1979 with Vasily Livanov as Sherlock Holmes and Vitaly Solomin as Doctor Watson . </Li> <Li> "The Speckled Band" was the sixth episode of the first series of Holmes adaptations starring Jeremy Brett, first broadcast in 1984 . </Li> <Li> "The Speckled Band" was adapted as part of the 1984--85 anime series Sherlock Hound . In this version, Moriarty poses as Roylott to steal Helen's money, and Hound gets involved when his motorcar breaks down and must stay at their home for the night . </Li> <Li> Kōki Mitani adapted "The Adventure of the Speckled Band" and "The Creeping Man" to an episode in the NHK puppetry series Sherlock Holmes . One night a swamp adder with crocus - shaped speckles is found in Beeton School . On the next day, trainee teacher Helen Stoner visits Holmes and Watson in 221B of Baker Dormitory and tells them about the strange behaviour of Grimesby Roylott who teaches chemistry . That night they find out what his behaviour means but Sherman, a female pupil is attacked by the adder . </Li> </Ul> <Li> A half - hour television adaptation starring Alan Napier and Melville Cooper was broadcast as the tenth episode of the NBC Television series Your Show Time on 25 March 1949 . </Li>

When does the adventure of the speckled band take place