I was with a large group having lunch. Some were strangers to me. One of the strangers said she saw the show and found the photo to be convincing. I pointed out that it had been debunked because it came from a 1935 book and they went missing in 1937. The response I got was "No, it is definitely the man that was with her in that photo".
I'm afraid more people saw the History Channel show than any rebuttal of it, and some won't change their minds upon hearing the photo was debunked.