You can only get FTA channels without one,
You should pay which ever service provider you want.
If you want SKY then pay Sky.
If you want Digitalb then pay them.
I however think you may be asking an underlying question regarding non-official subscriptions.
In that case read the forums here and a few other places and learn some of the things the box is capable of, then then search the net once again.
Sorry if its not the answer you want however this is a self help forum, there are many really helpful guides here to ease the learning process.