The failed Jay Leno experiment was great for business - at CBS. CBS entertainment president Nina Tassler said Saturday her network took in more advertising revenue for its 10 P.M. dramas because NBC decided to put Leno's comedy show on at that hour five nights a week. NBC is considering moving Leno back to late-night TV because its affiliates are upset that the show's low prime-time ratings are hurting late local news programs. “Ten o'clock is a great business for us,” Tassler said. “The unfortunate thing is that our creative community was to some degree somewhat bruised by this ... A lot of people were put out of work. A lot of people really saw this as having a negative effect on our business.” Hollywood actors, writers and producers had been upset about Leno's show from the beginning, seeing it as taking away from prime-time hours usually filled by scripted shows. Tassler said that NBC keeps seeming to come up with new prime-time strategies to deal with its ratings troubles when “there's no substitute for just developing and producing and launching great shows.” While NBC is still unsure what its late-night lineup will be, Tassler said CBS is close to signing deals that will keep David Letterman and Craig Ferguson in place through mid
