"As the Spittle Flies" is nearing the end of its run. This cable news soap opera -- a.k.a. "Countdown With Keith Olbermann" -- is alienating viewers as quickly as the angry and demanding diva has pushed away friends, family and colleagues over the course of his tumultuous career. When will the show end? Hard to tell. But the increasingly wild-eyed Keith is drawing rubberneckers in the same fashion as a six-car crackup beside the interstate. One media columnist observes a "creeping mania" brought on by plunging ratings and terminal jealousy. According to TV by the Numbers, the foam-at-the-mouth commentator seems...