Parental Controls on freeview box

[JackFrost]

Basically I'm trying to delete the adult channels off my freeview box, which appears to have the most pointless parental controls ever

 

I've worked out how to either delete them or lock them with a code but the problem is both these options are right next to the auto retune option, which as soon as it's selected re-tunes all the channels within 2 minutes and removes all the codes I've put in that did block the adult channels.

 

I fear it depends on the specific model (I think it's a wharfedale but won't be be to find out what model til tonight) and I'll take a closer look at the instruction manual, but is there any way of blocking the channels to stop them being scanned in the first place, or setting it so you have to type in a code to do an automatic scan?

[JackFrost]

sorted it.

 

it gives me an option to put a code on to access the main menu