Farscape, one of the most memorable science fiction sagas to ever blaze a trail through the television universe, turns 20 years old this week. It premiered March 19, 1999 in the US and a few months later in the U.K. There’s good news if you never saw Farscape and have always been meaning to dive in: All four seasons and the wrap-up Peacekeeper Wars miniseries, which had been unavailable on streaming for a while, arrive in HD on Amazon Prime Video on Tuesday, the show’s US anniversary date.