(Reuters) — When Comcast was angling to take over NBCU, the cable giant promised prominently to increase the profile of minorities at the company and launch eight independent cable networks, including four under African-American control. But a Who’s Who of African American media figures and civil rights leaders are frustrated that Comcast doesn’t seem to be moving fast enough, if at all. That includes a recent disastrous meeting between Comcast executives and Oprah Winfrey, in which Comcast executives rebuffed the media queen’s request for support for her OWN network. Leading entrepreneur Russell Simmons was rebuffed when he approached NBCU CEO Steve Burke about acquiring the Style network. The National Urban League, NAACP and Al Sharpton’s National Action Network, major civil rights groups, see several trouble spots with their efforts to work with Comcast, TheWrap has learned.