I've seen that photo. A girl of about seven with her arms over her head. It would be called child porn today. But it wasn't taken today.
The programme wasn't shown here.
I should add that the photo is in a book of Victorian photos, mostly of situations and personalities and workingmen but with a short 'art' section.
There was one shot of a pretty young lady playing tennis wearing a
heavy ankle-length skirt. You could see a vague shape of one of her calves. This aroused some controversy at the time, the caption said.