I forgot to mention this last week. When James and Oz were visiting a whisky distillery in last week's programme, they had a great bit showing an ancient-looking rake masher in action. It's been the highlight of the series for me so far.
The rake masher looked at least a century old. Maybe even older. I've only seen illustrations of thesee machines in old brewing manuals. I'd wondered exactly how they moved. Well, now I do. So thank you, James and Oz.
I suppose I should file this post under "sad old obsessive".