Turner's media empire began with his father's billboard business, Turner Outdoor Advertising, which he took over in 1963 after his father's suicide. It was worth $1 million. His purchase of an Atlanta UHF station in 1970 began the Turner Broadcasting System. CNN revolutionized news media, covering the Space Shuttle "Challenger" disaster in 1986 and the Persian Gulf War in 1991. Turner turned the Atlanta Braves baseball team into a nationally popular franchise and launched the charitable Goodwill Games. He helped revive interest in professional wrestling by buying World Championship Wrestling (WCW).