Old Time Radio Fans

Here is an American website with genre radio plays from the 30's to the 60s
Their Sherlock Holmes collection, although largely not the original canon, has a three part recording of Hound of the Baskervilles

http://www.oldtimeradiofans.com/

http://www.oldtimeradiofans.com/template.php?show_name=Sherlock%20Holmes