Radio 4, the jewel in the crown of the BBC's radio empire, is to enter a new era next month, seeking to become an online information and entertainment service as well as a national broadcasting station. The aim is to create a "bigger Radio 4" by rapidly improving access to the station's vast archives, as advances in technology make live radio and daily schedules less central to the BBC's output. The first stage is timed to coincide with the US presidential election on 6 November.