Part of a five-episode event that launched the series.
While the first five episodes first appeared as a TV movie, when in episodic format this marks the first appearance of Flintheart Glomgold.
Ronguay is a fictitious South American country, but is meant to sound like countries such as Paraguay or Uruguay. Based on where the boys point to on the globe, Ronguay is most likely meant to be Uruguay.
While Ronguay is not a real place, Scrooge mentions real geographic locations such as Borneo and Malaysia.
Scrooge quips "there's gold in them thar hulls," when he sees the treasure in the ship. This is a reference to the popular phrase "there's gold in them thar hills," which comes from a similar phrase in Mark Twain's 1892 novel, "The American Claimant" (Twain himself took inspiration from an assayer in Georgia named M. F. Stephenson).