The audio of this episode is not known to exist anywhere.
In "A Time to be Born and a Time to Die", Wyllis Cooper gives this preview of "The Venetian Blind Man": "Next week a man returns from the grave where I burried him. Mr. Charles W. Afternoon, the man who knows everything knew more than I did. You'll hear from him again in 'The Venetian Blind Man'." This is thus a sequel to "The Man Who Knew Everything".