The escalator was in fact invented as a novelty fairground ride

One of several engineering-themed shows on TVNZ 7, a genre that is seldom seen back on the BBC :-(

Although the most memorable catchphrase from this category, the show itself wasn't one of our favourites. Presented by Robert Llewellyn, who was far better suited to his ringmaster role on Scrapheap Challenge, How Do They Do It seemed to have borrowed a presentational style style that was a low-budget mashup of Mythbusters and Brainiac: Science Abuse (neither shown on TVNZ 7).