In 1965, Harmon bought out his business partners and became the sole owner of the licensing rights. Thinking that one national show that he fully owned would be more profitable for his company, Harmon produced 130 of his own half-hour shows from 1965 to 1967 titled "Bozo's Big Top" which aired on Boston's WHDH-TV (now WCVB-TV) with Boston's Bozo, Frank Avruch, for syndication in 1966. Avruch's portrayal and look of Bozo resembled Harmon's more so than most of the other portrayers' at the time. Avruch was enlisted by UNICEF as an international ambassador and was featured in a documentary, "Bozo's Adventures in Asia".