The iconic green slime of the Canadian television series "You Can't Do That on Television" was developed by accident, according to producer Roger Price - the original idea had been to dump a barrel of food leftovers on a young boy chained in a dungeon, but before it could be used, the contents of the barrel had turned green with mold. The noxious mixture was dumped on the young boy anyway, and overnight the series had its trademark gag. The show subsequently went through several different slime recipes incorporating ingredients such as lime gelatin dessert powder, flour, oatmeal or Cream of Wheat, baby shampoo, and even cottage cheese (not all necessarily at the same time). On the show (and subsequently on Nickelodeon since then), the composition of the slime was treated as a closely guarded secret, and some episodes revolved around the cast members trying to discern what the slime was made of.