Two things in particular made Stewart mad. One, more than once Cramer claimed his show was 'entertainment.' That really set Stewart off, who pointed out that the show's tag line contradicts the notion that 'Mad Money' is mere entertainment. He reminded Cramer that lots of people took his advice and watch the show for that, not for entertainment.
Two, Stewart repeatedly asked why shows like his - and all the other financial shows and networks - drank Wall Street's Kool-Aid and were not more skeptical about the risks taken by financial institutions.
In doing so, The Daily Show made the usually cocky and buffoonish Cramer simply buffoonish. It was brilliant television. It was also a reminder that the satirical fake news show - with fart jokes, etc. - is often times the ONLY show on television that is skeptical and hard charging on the big issues facing America.