It\u2019s songs, songs, songs as Thos investigates how you redesign a show to keep the best of the past but also take on board all those lessons you\u2019ve learned from a paying audience.\xa0 As The Quentin Dentin Show comes to the Arts Theatre in London, Thos talks to writer, Henry Carpenter, and producer, Hannah Elsy, about their craft and what it takes to improve a unique classic.\xa0 Bring in the Brain Machine!!!!.