Apparently there was a problem where the region would not change and I am informed using the following sequence should solve the problem:-
With the DVD disk tray empty, SELECT DVD
If the tray comes out, close it by touching the load field on the set and wait for 15 seconds
Select SETUP then Select service mode by pressing STOP STOP GO
Select the DVD field and then select the region you want and press GO
Within 20 seconds the screen should turn blue. This indicates that region has been successfully changed. If it does not turn blue then the region was not stored.
Press STANDBY