Videotaped at the former WHDH-TV (now WCVB-TV) studios in Boston which was titled "Bozo's Circus" with Frank Avruch playing Bozo the Clown in over 1,100 live episodes which aired from 1959 to 1970. In 1965, Larry Harmon became the sole owner of the Bozo licensing rights after buying out his business partners and produced 130 episodes of the Boston TV show between 1965 and 1967 and syndicated them to local U.S. television markets that did not produce their own Bozo shows. The half-hour syndicated shows were retitled "Bozo The Clown" (on episodes with a 1965 date) and "Bozo's Big Top" (on episodes with a 1966 date).
This was the only version of Bozo the Clown that Larry Harmon tried to syndicate nationally in 1966 when he bought out his business partners and became the sole owner of the licensing rights they had originally purchased from creator Alan W. Livingston and Capitol Records. Frank Avruch was Boston's Bozo for seven years prior to this program. Harmon thought that one national Bozo would be more profitable for his company and tried to do so with Avruch, whose portrayal and look were similar to Harmon's portrayal. But Harmon was met with resistance as most television stations preferred to continue producing their own versions, the most popular being Bob Bell and WGN Chicago's which ultimately went national via cable and satellite in 1978.