Yes, the former MTV host (not so long ago) who favored leather jackets has a big birthday today. So, in tribute, two of his greatest Daily Show moments: his first Glenn Beck impersonation—and the day he trashed Crossfire on CNN as “partisan hackery.” This, some say, helped provoke the demise of the program. Jon to Tucker Carlson: “You’re 35 and you still wear a bowtie?”