How to Build a Bionic Man, Channel 4, review How to Build a Bionic Man (Channel 4) was a modern day Frankenstein's manual, explaining how to build a human being entirely from mechanised body parts. Presented by Bertolt Meyer, a Swiss psychologist who has a bionic hand himself, it was a fascinating - if at times frightening - insight into how modern technology can replace, and often improve, biological limbs. We watched Meyer travelling around America, where the military has poured $100million into bionic limb research. A competent presenter, he brought a human element to an otherwise tech-heavy show. A highlight was the story of bionic eye implant patient Caroline Skinner, a blind churchwarden who longed to see light shining through a stained-glass window; and the astonishing tale of Hugh Herr, a professor from the Massachusetts Institute of Technology, who lost both his legs to frostbite as a teenager. Informative, fast-paced and frequently startling, the programme covered the science behind bionic limbs well but failed to confront some of the moral questions. Is a human being really nothing more than the sum of its parts? Can technology surpass biology? The building of the doppelgänger "Eugene" was a bizarre conclusion - one that left Meyer visibly unnerved. "It's a patchwork of parts," he told the scientists, "it's revolting." Taking it to Harrods to buy clothes was even odder, undermining the serious premise of the show. But producers were right to include the shortcomings of the current research (including the brilliant exchange via Stephen Hawking's speech software: "Eminem is a famous crapper. No, raper. Ripper. I mean rapper") - showing that while bionic cloning may not be a long way off, we're definitely not there yet.