Basil Rathbone's last episode as the famous detective was "The Singular Affair of the Baconian Cipher." He was eager to separate himself from the cast type of Holmes, and even though the show's sponsor Petri Wine offered him generous pay to continue, he decided to move on. Once he did, the sponsor did as well, and Tom Conway took the starring role, though Nigel Bruce got top billing and was always announced first. The new sponsor was Kreml Hair Tonic for Men, and the new series only lasted 39 episodes.