There has been a series all this week on R4 after lunch about the new "Information Age" Gallery from Manual telephone switchboards though the famous BBC Our World programme to GPS. Available on iPlayer still.
The exhibition is open now and details at http://www.sciencemuseum.org.uk/visitmuseum/Plan_your_visit/exhibitions/informat...
Will be of interest to many Ex-BBC staff and not too many inaccuacies!