Since coming on the air September 8th of this year, "The Rachel Maddow Show" has been a surprise even to the people who put it on the air.She has nearly than doubled the audience that MSNBC had been getting in the time slot, according to Nielsen Media Research. In its second week on the air, Maddow's audience was even bigger than that of CNN's "Larry King Live."But Maddow who had a show on the "Air America" radio network and had appeared frequently on MSNBC, particular on Keith Olbermann's "Countdown’ was a known quantity, people liked her before she got ...