bush dv3 unlock?

Hi I am of the old school where I believe that if i'm paying an extortionatly high price for my tv licence then having to pay for additional chanels is out of the question.

My wife was given a bush dv3 freeview box which I set up earlier this has given us a few new chanels but a number of chanels are locked does anyone have the unlock code for this particular dinasaure or is there a way to unlock it on the board?

Thanks for any advice.