` I said , 'Is it curable ? ' ` ` The Simpsons '' co - creator was told he had three to six months to live . Now , he 's still fighting and devoted to giving back . Lisa : This has been one of the most amazing experiences of my life .
` ` The Simpsons '' co - creator was told he had three to six months to live . Now , he 's still fighting and devoted to giving back . Lisa : This has been one of the most amazing experiences of my life .