The Mutual Black Network (MBN) was founded by the Mutual Broadcasting System in 1972 as the first national full-service radio network aimed at African Americans; it was initially branded as Mutual Reports[1] before the branding change to MBN. With 98 affiliated stations across the United States, including flagship WNJR in New York, the network broadcast an hourly five-minute newscast at 50 minutes past the hour. It also aired sports and feature programs, and for one year beginning in the spring of 1974, a 15-minute daily soap opera called Sounds Of The City.
Some of its special programming focused on African-American history, much of which was researched, written and narrated by MBN news anchor Ben Frazier. Other MBN news anchors included Glen Ford, John Askew and Ed Castleberry; Castleberry also hosted a celebrity interview program, Soul of Entertainment.
In 1981, the Mutual Black Network was purchased by Sheridan Broadcasting, an African American-owned company which had been a minority stockholder in MBN, and renamed the Sheridan Broadcasting Network. A decade later, SBN merged with the rival National Black Network, forming the present-day American Urban Radio Networks.