Wikipedia
WPCH-TV, virtual channel 17 ( UHF digital channel 20), is an independent television station located in Atlanta, Georgia, United States. The station is owned by the Turner Broadcasting System subsidiary of Time Warner; the Meredith Corporation, which owns CBS affiliate WGCL-TV (channel 46), operates WPCH-TV under a local marketing agreement. The two stations share studio facilities located on 14th Street in northwestern Atlanta; WPCH maintains transmitter facilities located in North Druid Hills.
Through its ownership, WPCH-TV was the only broadcast television station owned by Time Warner (this is despite the fact that the company is half-owner of The CW, which carries its programming locally on WUPA (channel 69), owned by fellow CW half-owner CBS Corporation). From December 17, 1976 to October 1, 2007, when its operations were separated from the co-owned TBS cable channel, channel 17 was the pioneering superstation and was carried on cable and satellite television providers throughout the United States and Canada; the station continues to be available throughout Canada on cable and satellite.