Think of it as a comic rendering of Saturday night’s quotes of the day. Pretty funny — you’ll laugh, more than once — but not as gratifying as it would have been if they’d zeroed in on the smearmongering. As it is, all you get is the incest line at the beginning and then the rest is mostly an excuse to goof on neurotic Manhattan liberals for being neurotic Manhattan liberals, with Palin as a handy peg.