[PAR] [TLE] Hanna-Barbera [SEP] Hanna-Barbera Productions, Inc. (simply known as Hanna-Barbera and also referred to as H-B Enterprises, H-B Production Company and Hanna-Barbera Cartoons, Inc.) was an American animation studio that dominated American television animation for over three decades in the mid 20th century. [PAR] [TLE] The Flintstones [SEP] The Flintstones is an American animated sitcom produced by Hanna-Barbera for ABC.  The series takes place in a romanticized Stone Age setting, depicts the lives of the titular characters and their next-door neighbors and best friends.  It was originally broadcast from September 30, 1960, to April 1, 1966 in a prime time schedule, the first such example of an animated series.
[PAR] [TLE] Hanna - Barbera [ SEP ] Hanna - Barbera Productions , Inc. ( simply known as Hanna - Barbera and also referred to as H - B Enterprises , H - B Production Company and Hanna - Barbera Cartoons , Inc. ) was an American animation studio that dominated American television animation for over three decades in the mid 20th century . [PAR] [TLE] The Flintstones [ SEP ] The Flintstones is an American animated sitcom produced by Hanna - Barbera for ABC . The series takes place in a romanticized Stone Age setting , depicts the lives of the titular characters and their next - door neighbors and best friends . It was originally broadcast from September 30 , 1960 , to April 1 , 1966 in a prime time schedule , the first such example of an animated series .
How many decades did the company, which produced The Flintstones, dominate American television animation?
How many decades did the company , which produced The Flintstones , dominate American television animation ?
three
three