Air Programs International (API), initially known as Air Programs Australia, was an Australian Animation Studio founded in the early 1950s. The studio gained prominence in the 1960s when it began producing Cartoons. One of its most notable productions was the series "Arthur! and the Square Knights of the Round Table". While it was acquired by Hanna-Barbera in 1972, by 1984, it began to decline, and later went out of business.
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