Independent UHF stations were not ratings winners or that profitable even in larger markets, but Turner had the foresight that this would change as people wanted more than several choices.
In 1969, he sold his radio stations to buy a struggling television station in Atlanta, WJRJ, Channel 17.
At the time, UHF stations did well only in markets without VHF stations, like Fresno, California, or in markets with only one station on VHF.
Additionally, in 2001, Turner co-founded the Nuclear Threat Initiative with US Senator Sam Nunn (D-GA).
NTI is a non-partisan organisation dedicated to reducing global reliance on, and preventing the proliferation of, nuclear, chemical, and biological weapons.
The book observed that Turner "discovered his father had sheltered a substantial amount of taxable income over the years by personally lending it back to the company" and "discovered that the billboard business could be a gold mine, a tax-depreciable revenue stream that threw off enormous amounts of cash with almost no capital investment".
In the late 1960s, Turner began buying Southern radio stations.
Turner attended Brown University and was vice-president of the Brown Debating Union and captain of the sailing team. After leaving Brown University, Turner returned to the South in late 1960 to become general manager of the Macon, Georgia branch of his father's business.
Following his father's March 1963 suicide, Turner became president and chief executive of Turner Advertising Company when he was 24 and turned the firm into a global enterprise.
He helped revive interest in professional wrestling by buying World Championship Wrestling (WCW) and starting the Monday Night Wars in 1995, airing Monday Nitro on his TNT head-to-head against the World Wrestling Federation's Monday Night Raw on USA.
Turner's penchant for controversial statements earned him the nicknames "The Mouth of the South" and "Captain Outrageous".
CNN revolutionized news media, covering the Space Shuttle Challenger disaster in 1986 and the Persian Gulf War in 1991.