I downloaded mine via bitorrent. Thats what I do for all my preferito British shows that take forever to come to the US. Seriously, they just got around to selling the series 1 dvd in the US, let alone the secondo series.
It is however, extremely illegal so it can easily get te in BIG trouble if a movie studio (usually blockbuster movies) catches your ip taking one of there films. So be careful what te dl o else you'll be made to pay $2,500+ on a settlement fee.
Youtube for season three episodes but they are in parts only proplem here is the first episode part one to help te find the rest they are all made da the same person