I didn't know Tim Hunkin was still making videos; I shall seek it out.
Tim Hunkin's TV series in the 1980s & early 1990s on "the Secret Life of… " telephones, photocopiers, radio etc. was very interesting and watchable, and I often used it as a teaching aid in Science lessons. He also did a series of scientific cartoon strips in one of the daily papers, and his eccentric machines are a wonder to behold. His "Under the Pier Show" on Southwold pier is great fun, and my teenage daughter loved it.
George