You have two options:
The easiest way would be to have cable tv witch canal + premium channels - but cable isn't available everywhere - it depends on the area.
Satellite dish - online purchase here: ncplus.pl/sklep/oferta/comfortplus-sport - you get promo dish for just 1PLN when buying online,
purchase in one of the NC+ providers in the country: ncplus.pl/oferta/jak-kupic
is it easy to connect?
If it's your first time mounting/installing satellite dish it may be little trouble, but it's doable. You may ask a neighbor who owns a satellite to give you a hand. You need window from south side to mount it. Details are provided here: ncplus.pl/pomoc/instalacja/instalacja-anteny