Jon Stewart realized that Koch Industries was running ads during his show.
So he trolled them.
WASHINGTON POST: Jon Stewart realized that Koch Industries (of David and Charles Koch fame/infamy) had been running ads during the Daily Show, and, unsurprisingly, decided to address it. The ad isn’t political, it highlights the company’s work and the people working there. Many wondered if the ads were designed to counter negative reactions to the Kochs’ political activity when they debuted in June. An executive at Koch Industries denied that in a Washington Post story last month.