This week sees the first stage of the digital television switchover for 460,700 homes in Essex and parts of Suffolk.
From 6am Wednesday 6th July 2011, you must to a perform a "first time installation" retune (sometimes "Factory Reset" or "Shipping Condition") on your Freeview box or television set if you use the Sudbury full service Freeview transmitter. This is because the "multiplex 1" BBC service will be replaced by the BBCA multiplex on a different frequency. Update: And, in the instance of Sudbury, multiplex A/SDN also moves at the first stage.
In addition there are three new transmitters at Burnham on Crouch (new), Clacton (new), Rouncefall (new). From Wednesday 6th July 2011 these three transmitters will start transmitting the BBC multiplex, with the normal (limited Freeview Light) service starting on 20th July 2011.