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Where To Watch truTV Presents World's Dumbest... AKA The Smoking Gun Presents The World's Dumbest Season 15

  1. 1World's Dumbest Performers 14February 27, 2013
  2. 2World's Dumbest Motorheads 8March 8, 2013
  3. 3Smartest Inventions 10March 15, 2013
  4. 4World's Dumbest Thrillseekers 9March 22, 2013
  5. 5World's Dumbest Outlaws 9April 4, 2013
  6. 6World's Dumbest Motorheads 9March 28, 2013
  7. 7World's Dumbest Performers 15April 18, 2013
  8. 8World's Dumbest Partiers 21April 25, 2013
  9. 9World's Dumbest Thrillseekers 10June 13, 2013
  10. 10World's Dumbest Motorheads 10June 20, 2013
  11. 11World's Dumbest Performers 16June 27, 2013
  12. 12World's Smartest Inventions 11July 11, 2013
  13. 13World's Dumbest Partiers 22July 18, 2013
  14. 14World's Dumbest Pranksters 3August 8, 2013
  15. 15World's Dumbest ShowoffsAugust 15, 2013
  16. 16World's Dumbest TV ShowsAugust 22, 2013