Another long-time NBC executive is leaving the company following the merger with Comcast. Paula Madison, NBCUniversal’s EVP diversity, said today that she will retire from the company May 20, after the first Joint Diversity Advisory Council in Philadelphia with Comcast and NBCU, to work for her family’s investment business. Madison joined NBCU in 1989 as assistant news director at WNBC-TV. She served as president and general manager of KNBC-TV before becoming NBC’s first chief diversity officer in 2007. Madison is the third top NBC executive listed in Steve Burke’s November memo outlining the post-merger organizational structure to exit, following Angela Bromstad and John Eck. On the international TV side, high-profile departures include Peter Smith and Roma Khanna.