This update of the late-1970s series takes a decidedly darker tone as what's left of humankind struggles for survival against the robot Cylons, who have killed millions. The Galactica, led by William Adama, protects a patched-together fleet of civilians -- led by de facto president Laura Roslin -- in search of a mythical planet called Earth.

Sci-fi shorts from emerging filmmakers feature stunning visual effects, captivating plots and complex characters.

A collection of short supernatural plays.

Former scientist Sam Beckett finds himself trapped in time due to an experiment gone awry, leaping into the body of a different person each week. Al Calavicci, at first known only as The Observer, is Sam's holographic adviser -- he provides Sam with some details about his new identity and gives him guidance on how to help the people affected by his presence. But with little memory to help guide him, our hero is forced to bluff his way through many a wacky situation.

Quinn Mallory has a problem: He's discovered a way to travel to other dimensions. So what's the issue? Like Sam in "Quantum Leap," he can't get back home. But don't worry; he's not lost alone.

A team of explorers made up of soldiers and scientists travels through a Stargate, an ancient portal to other planets. They use the Stargate to explore new worlds, forge ties with friendly civilizations and protect Earth from hostile forces. The TV series is based on the theatrical film "Stargate."

A reckless young man learns that he is destined to be the greatest sorcerer the mythical world of Earthsea has ever known. But before he can fulfill his destiny and save his world from the evil king, he must master the powers he has been given. Based on the books by Ursula K. LeGuin.

In the tradition of the 1960s cult show of the same name, this anthology series features different actors, many well-known from their previous work, in each episode. The episodes often explore eerie and often supernatural themes with a science-fiction element.

The noted science-fiction author hosts dramatizations of his own short stories.