It's only three weeks in, and already Awake is proving to be one of our favorite television shows of recent years. Last night's episode was so skillful and graceful, it took what could have been a dull melodrama and turned it into a brilliant bit of character development.

The original 1956 plan for the Bay Area Rapid Transit system was way more complex on paper than it is in reality. Designer Jake Coolidge has imagined a universe in which this full plan was implemented. And even though it doesn't involve filling in the Bay or underground rocket trains or pyramids, it does complement…

Fringe returns for a miraculous fourth season next month, and we'll finally get to discover just what kind of world(s) our characters are living in now.

Fringe has already proven that it's willing to take its alternate-universe concept in shocking directions. But the first two episodes of season three have so many mind-blowing, thought-provoking, can't-believe-they-went-there moments, you'll have to watch them twice. Here's our spoiler-free preview.

Is it too soon to wonder if Lost's latest gimmick is falling a bit flat? At the very least, last night's episode was the second in a row that Sawyer stole, and that feels significant. Spoilers below.

There's nothing scarier than deja vu: that feeling that everything we've seen before will keep coming back over and over again, until your head dissolves. Which overused trope are you most sick of: zombies, vampires, alt-universes, post-apocalyptic worlds or steampunk?

In Paul Melko's Walls Of The Universe, our hero visits an alternate world where patents and copyrights only last a short time. What would happen to science fiction if this was true in our world?