King Kong vs. Godzilla
This series was successful enough for Rankin/Bass to extend the Kong franchise to another Japanese company, Toho (which had already produced the hit film "King Kong vs. Godzilla" in 1962). This resulted in two films: "Ebirah, Horror of the Deep" (originally intended to be a Kong film) and "King Kong Escapes", which was based on "The King Kong Show".