NEW YORK (AP) — The Black News Channel, nearly invisible upon its launch last year, is revamping to take on a new look starting Monday. It is adding a four-hour morning show with Mike Hill and Sharon Reed and will be emphasizing commentary and analytical news coverage moving forward. The network’s bid for viewers comes at a time when mainstream news organizations are taking a hard look at their employment of minority journalists and coverage. New York Times columnist Charles Blow and commentator Marc Lamont Hill will be among the new voices joining the network, which is methodically increasing its visibility.