As much as I love the CBS Radio Mystery Theater it's hard for me to warm to their adaptations of Sherlock Homes. The reason that CBSRMT waited until 1977 to even attempt Holmes was probably the difficulty in casting Homes. To me Kevin McCarthy was not a convincing Holmes. In this particular episode there is a lack of decisiveness in the way Holmes speaks. This improved in the later adaptations in which he retained the role, but still not as satisfying as voices like Sir John Gielgud, or Orson Welles in The Mercury Theater. 