About this programme
How do they make an almost invisible hearing aid that connects wirelessly to a phone? How do they build the carriages for London's new underground railway.
TVGuideUK
Programme listing
How Do They Do It? is next on High Street TV 4 at 23:00 on Wed 11 Nov 2026.
The next showing is on High Street TV 4.
Yes — it is on tonight at 23:00 on High Street TV 4, ending at 23:30.
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How do they make an almost invisible hearing aid that connects wirelessly to a phone? How do they build the carriages for London's new underground railway.
Selected past broadcasts with their original date, time and channel details.