Michael Jacobson stops by to seriously bum out Stephen about pepperoni pizza, Cheddar Combos and pretty much everything else that he loves to eat. (7:05)
Stephen is all for the second opinion. If a doctor says he's allergic to shrimp, he finds a doctor that says he's not. He feels the same about scientists and global warming. (4:04)
Tonight, Stephen celebrates The Colbert Report's first birthday, encourages more U.S. households to marry and interviews biologist Richard Dawkins. (0:31)