NBC wants you to watch Grimm really bad even before the premiere officially airs Friday October 28th. If you followed @GrimmNBC on NBC like fourteen thousand others you got a passcode to watch the pilot early; I actually got the code and watched pilot two weeks early.  If you don't even follow Grimm's Twitter handle you can go to nbc.com/grimm and watch the first 20 minutes without obligation. I guess you could call it a sort of a "soft open"; lets just hope it doesn't have a negative impact on the premiere, which was already pushed back by a week in hopes of capitalizing on the Halloween weekend.