The show’s writers based MacGyver’s inventions on items they found on location, concepts from scientific advisers John Koivula and Jim Green, and real events. The show offered a monetary prize to people who sent good ideas for the show. A young fan suggested that MacGyver could patch up a vehicle’s radiator by cracking an egg into it. The episode “Bushmaster” was constructed around this trick, and the fan was rewarded (producer Henry Winkler said in a 2005 NPR interview that that was his favorite “MacGyverism”).
