Observant viewers of “The Daily Show with Jon Stewart” may have noticed that the Comedy Central program has a new advertiser. No, not a video game or even a new flavor of Bud Light: a family-owned outfit out of Kansas is buying ad time during the influential comedy-news program. That company: Koch Industries. You may have heard of Koch Industries when they were nominated for the initial rounds of the 2014 Worst Company in America tournament, defeating student-loan megalith Sallie Mae, but ultimately losing in the second round to Time Warner Cable.