Graham operated a variety of media and publishing outlets. According to his staff, more than 3. 2 million people have responded to the invitation at Billy Graham Crusades to "accept Jesus Christ as their personal savior". Graham's evangelism was appreciated by mainline Protestant and Roman Catholic denominations as he encouraged new converts to become members of these Churches. As of 2008, Graham's estimated lifetime audience, including radio and television broadcasts, topped 2. 2 billion. One special televised broadcast in 1996 alone may have reached a television audience of as many as 2. 5 billion people worldwide. Because of his crusades, Graham preached the gospel to more people in person than anyone in the history of Christianity. Graham was on Gallup's list of most admired men and women 61 times, more than any man or woman in history. Grant Wacker writes that by the mid-1960s, he had become the "Great Legitimator": "By then his presence conferred status on presidents, acceptability on wars, shame on racial prejudice, desirability on decency, dishonor on indecency, and prestige on civic events".