What does it mean that not one but two of this fall's new shows feature Rob Lowe? It means all bets are off, dude. The rookies this fall have some extremely welcome signs of life, which comes as a relief after last year's smoking crater of a fall season — the kind of hellhole where a rom-com called Selfie could shine like a beacon of hope. (Strange to think that just a year ago we got Katherine Heigl as a rogue CIA agent.) So here's a round-up of the most promising fall newcomers — sorority-house massacres, superheroes, sitcoms, neon cartoon cops, crime-fighting precogs, the undead. And of course, Wesley Snipes in Vegas.