While wearing the costume for Dr. Watson, which included a full-head latex mask, a 100% wool overcoat and thick winter gloves, while shooting interior scenes, Todd Jacobsen nearly passed out from overheating. And he still had three other characters to play in the film.
Beginning in February 1977, Scott Allen Nollen and Todd "Dane" Jacobsen began making a long-running series of audio plays in which Sherlock Holmes has a son, with the bizarre name of Steel Rod Holmes, who takes part in the investigations of his father and Dr. John H. Watson. Nollen and Jacobsen often played up to 10 characters each in these totally improvised productions. "The Adventure of the Disappearing Divan" is the only surviving visual production involving these characters. (Others recorded on early video formats have not survived.)