Which network aired "The Late Show Starring Joan Rivers"?

Joan Rivers had spent decades clawing her way to the top of the comedy world, and by 1986 she was ready for the ultimate prize. A television network came calling with an offer to make her the first woman to host a late-night network talk show, giving her the chance to step out from behind anyone's shadow and claim her own spotlight. Which network aired "The Late Show" with Joan Rivers?