64: Everyone cries at "Jurassic Bark". Everyone! Even spambots (http://xkcd.com/233/) (check the alt text). I also cry at "Luck of the Fryrish", "The Sting", and "The Devil's Hands Are Idle Playthings". Oh, and Bender's Big Score. For a wacky comedy show, Futurama has a surprising amount of emotional depth.