| Description | Series of articles about the National Theatre's advanced and innovative technology. Tpoics include the vast drum revolve extending 44 feet under the Olivier stage,design, lighting, flying equipment, computer systems and early technical problems/faults due to the complexity of the machinery and the theatre opening before the works were finished, the innovative work of stage technology company Theatre Projects and of Theatre Projects Consultants, interviews with lighting designer Richard Pilbrow head of Theatre Projects, head production designer John Bury, designer Ralph Koltai, profiles of architect Denys Lasdun, and replacement of the electrical flying system in the Lyttelton Theatre |