It’s ironic that we TV critics were only allowed one viewing of this new sci-fi series before having to pass judgment, because even those only casually acquainted with the genre will feel they’ve seen the like of this part-Spielberg-conceived space invasion series many times before anyway. In fact, I can imagine the heads of sci-fi geeks exploding Scanners-style as their brains overheat with the effort of trying quickly to reel off all the films referenced by either concept or design in this opening episode alone.