Eliot Spitzer isn’t ready for live TV, sources say. CNN’s “Parker Spitzer” is pretaped and edited because the ex-gov and Kathleen Parker can’t take cues or stick to timing. A rep for CNN denied the show is pretaped to edit flubs. But an insider said watching the inexperienced duo bumble during rehearsals drove primetime fill-in Rick Sanchez over the edge, leading to his charge that CNN is run by bigots. “Timing was a big factor in Sanchez’s blowup,” our source said. “He was frustrated that he was constantly being overlooked, he thought his race had something to do with it.” Sanchez’s rep had no comment. With former CNN President Jon Klein and gaffe-able Sanchez gone, morale is higher at the network that prides itself on straight news. “It was really the end of the Klein era when Sanchez was fired,” a source said. Klein was booted a week earlier. His replacement, Headline News honcho Ken Jautz, is universally liked for working his way up in news, unlike his predecessor, who was considered a gimmicks guy.