You'll need:
1. Sky Activated Viewing Card.
2. Sky digibox - unsubsidised. This is very important as subsidised boxes need to be connected to a phone line during the first year of subscription.
3. A larger dish depending on where you are in Poland.
That works for me i get channel 4, 5, sky 3 most of the news channels all the Foriegn shite channels and true movies, whoopie. Cant get a signal for bbc or itv thoughand I have a huge dish.