Complex sentence: It is the only PBS station in Georgia which is not run by Georgia Public Broadcasting as part of GPTV, however GPB does have WGTV serving the area, leading to some duplication (but only rarely simulcasting) of programming.
Split into simpler sentences: It is the only PBS station in Georgia which is not run by Georgia Public Broadcasting as part of GPTV. However, GPB does have WGTV serving the area, leading to some duplication (but only rarely simulcasting) of programming.