copied and pasted from wikipedia
The first "Superstation"
Main article: TBS (TV network)
Beginning in the early 1970s many cable systems in surrounding states would microwave the WTCG signal into neighboring Alabama, Tennessee and South Carolina, far beyond the Atlanta TV market. WTCG was one of the first TV stations to broadcast via satellite. It, along with WOR-TV (now WWOR-TV) in New York and WGN-TV in Chicago, were among America's first "superstations": independent channels distributed to cable systems throughout their respective regions, or the entire country.
At 1 p.m. Eastern Standard Time on December 17, 1976, WTCG's signal was beamed via the Satcom 1 satellite to four cable systems in Grand Island, Nebraska; Newport News, Virginia; Troy, Alabama; and Newton, Kansas. All four cable systems started receiving the sleepy 1948 Dana Andrews and Cesar Romero film Deep Waters, which was already 30 minutes in progress. Instantly, WTCG added 24,000 more households to its viewing audience, which consisted of 675,000 households in metropolitan Atlanta. That number would grow exponentially in the next several years, with the first heaviest concentrations in the Southern United States (where WTCG's telecasts of Atlanta Braves baseball and professional wrestling were highly popular), but eventually encompassing the nation. The station, and Turner's innovation, signaled the start of the basic cable revolution. By 1978, WTCG was on cable systems in all 50 states, many of which lacked access to a local commercial independent station and in some cases even a distant one.
Programming stayed pretty similar as shows such as Brady Bunch, Beverly Hillbillies, Bewitched, I Dream Of Jeannie, Hogan's Heroes, made for TV Popeye cartoons, and other vintage shows would be purchased second and even third hand. They did manage to win bids for All In The Family and Sanford and Son however.