NBA great Magic Johnson's Aspire network is to debut this summer and will offer "enlightening, entertaining and positive programming to African-American families," The Hollywood Reporter said.
Rap mogul Sean "Diddy" Combs' Revolt is to start airing music-oriented programs next year and will have a strong social media presence.
Film director Robert Rodriguez's El Rey will be an English-language general entertainment network targeted at Latino audiences and set to premiere in 2014.
The entertainment industry trade newspaper said the minority-backed networks are part of a plan Comcast outlined during its campaign to win government approval for its controlling stake in NBC Universal.
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