Continuing with the theme of science fiction/horror series on DVD and Blu-Ray for summer viewing, you might like to check out Falling Skies, a very classy science fiction production with Steven Spielberg as executive producer. It is a post-apocalyptic drama that follows the resistance mounted by humans against alien invaders who have conquered the earth. The special effects are well-done and the acting is top-notch. Fans of the Star Wars movies will no doubt enjoy this series with its exotic array of extraterrestrials and its classic battles between good and evil.
Extant, another Steven Spielberg production, combines the themes of space travel, alien incubation in
humans, and artificial intelligence. Although the series lasted only two seasons, it has a very interesting dual story line and features Halle Berry in the lead role as an astronaut who discovers upon her return to earth that she is pregnant. The series has overtones of the Alien franchise, as well as Spielberg's AI movie.