LAS VEGAS (Hollywood Reporter) - Katie Couric hopes to bring a "humanistic, more accessible" approach to her job when she takes over as anchor and managing editor at "CBS Evening News" in September, she said Thursday. Addressing the annual convention of CBS affiliates, Couric predicted that the "pretentious era" of the evening-news anchor is going to be a thing of the past. "The audience is more sophisticated than we give them credit for -- they don't want a mechanical Ted Baxter," said Couric, whose last day as co-anchor of NBC's "Today" was Wednesday. "I'm a serious, caring, compassionate person. I...