Secret Squirrel is a cartoon character created by Hanna-Barbera for The Atom Ant/Secret Squirrel Show, which debuted in 1965. The character was given his own show in 1966, titled The Secret Squirrel Show, but was reunited with Atom Ant for one more season in 1967. The half-hour The Secret Squirrel Show included three individual cartoon segments: "Secret Squirrel", "Squiddly Diddly" and "Winsome Witch". Secret Squirrel first appeared in a prime-time animated special called The World of Secret Squirrel and Atom Ant, which aired on NBC on September 12, 1965.
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Hanna-Barbera was an American animation studio and production company, which was active from 1957 until its absorption into Warner Bros. Animation in 2001. Founded on July 7, 1957 by Tom and Jerry creators William Hanna and Joseph Barbera, it was headquartered on Cahuenga Blvd from 1960 to 1998, then subsequently at the Sherman Oaks Galleria in Sherman Oaks. In 1958, the studio debuted The Huckleberry Hound Show, then The Flintstones in 1960.
The Hanna-Barbera headquarters in Los Angeles in the 1990s. The "swirling star" logo on the right was designed by Saul Bass in 1979.
The former Hanna-Barbera building at 3400 Cahuenga Boulevard West in Hollywood, seen in a 2007 photograph: The small yellow structure (lower right) was originally the "guard shack" for the property entrance to the east of the building.
Sherman Oaks Galleria in 2002. The building where Hanna-Barbera and Warner Bros. Animation were located from 1998 to 2001 is visible on the right.