Besides the original cult hit film, the sci-fi franchise Alien Nation also encompasses a TV series and several TV movies worth checking out.

During many of the early episodes of “Alien: Earth,” David Rysdahl hovered in the background of scenes, concentrating on his job as lead technician for the Prodigy program.

Go behind the scenes on the set of FX's Alien: Earth to see what's in store for humanity when technology and biology collide – and why that doesn't bode well for our planet: Set to crash land across ...