A former agent of the Korean Central Intelligence Agency testified yesterday that he defected to the United States and became a witness against Hancho Kim, a Korean-born Lanham, Md., businessman, because he feared he would be imprisoned if he returned to South Korea.

Sang Keun Kim, who has said he was the second-ranking KCIA agent attached to the Korean embassy here, said he decided to defect in November 1976 after he heard "talk in the Korean embassy" that his KCIA supervisor in Korea might be "disposed of" as the Korean influence-buying scandal continued to unfold in this country.

McLendon's past includes a few intriguing footnotes which could provide material of their own for a television series. In 1963, after he shot Lee Harvey Oswals, Dallas nightclub owner jack Ruby told and EBI investigator McLendon was "one of my closet friends." McLendon, a former naval intelligence officer, denied any close personal relationship to Ruby.

A year later a woman fired a shot at a Dallas man in the city's airport and told police she thought she was firing at McLendon, then a candidate for the Democratic senatorial nomination in Texas. The woman reportedly told police she believed McLendon was the leader of a crime syndicate.

McLendon, whose Texas corporate empire once included a chain of a dozen radio and television stations. said in an interview yesterday he is now involved in real estate and a large chain of drive-in movie theaters in the Southwest. His McLendon Co. also still owns a Dallas radio station.

McLendon says he got the idea for the CIA series from the once popular television serial "The FBI" which burnished the bureau's image weekly from 1969 to 1974. Former FBI Director J. Edgar Hoover reportedly never missed and episode of the series and the FBI kept one agent on duty as a full-time script reviewer for the production.

"The FBI series was very sucessful and I think the time is right for a darned interesting series on the CIA," said McLendon.

About five other entrepreneurs have suggested similar ventures in the last year, the CIA spokesman said. Each was turned away by the agency after it became clear they were seeking total or partial funding for the projects by the government.

"McLendon has a reputbale Hollywood producer with good credits and plently of his own financial backing," said the spokesman. Another plus that got McLendon and Phillips in to discuss the proposed series with Turner was its "positive approach," he said.

"They obviously didn't come in saying they were going to do series on MK Ultra," the spokesman said, referring to the CIA's much publicized domestic mind control experiments over the lastublicized domestic mind control experiments over the last three decades.