In 2011 , when narrating the first episode of the American television series `` Curiosity '' on the Discovery Channel , Hawking declared : In September 2014 he joined Starmus Festival as keynote speaker and declared himself an atheist .
[ 202 ] In 2011 , when narrating the first episode of the American television series `` Curiosity '' on the Discovery Channel , Hawking declared : In September 2014 he joined Starmus Festival as keynote speaker and declared himself an atheist .