Walter Frederick Morrison disc more cheaply. In 1955, he and Lu designed the Pluto Platter, the archetype of all modern flying discs. On January 23, 1957, they sold the rights for the Pluto Platter to the Wham-O toy company. Initially Wham-O continued to market the toy solely as the "Pluto Platter", but by June 1957 they also began using the name "Frisbee" after learning that college students in the Northeast were calling the Pluto Platter by that name. Morrison also invented several other products for Wham-O, but none were as successful as the Pluto Platter. Morrison and his wife, Lu Nay Morrison had
The Familiar of Zero July 10 and September 24, 2008. An original video animation episode for the third season was released on December 24, 2008. Sentai Filmworks licensed the third season with the OVA (under the name "The Familiar of Zero: Rondo of Princesses") in North America and released them on May 12, 2015 on Blu-ray and DVD. The fourth and final season titled "Zero no Tsukaima F" aired twelve episodes between January 7 and March 24, 2012. In 2012, Sentai Filmworks licensed the fourth season (under the name "The Familiar of Zero: F") in North America and released it on July 14, 2015