You can buy it on instant video: https://www.amazon.com/Farscape-Ben-Browder/dp/B01CIAOAN2/ref=sr_1_1?s=instant-video&ie=UTF8&qid=1468127800&sr=1-1&keywords=farscape

I believe you need an international bluray to watch those editions

Edit: I tried the link I just gave you and they took it off the store, it did not show up as unavailable for me because I own it already