Brian Williams' final MSNBC broadcast will be on Thursday
CNN
Brian Williams, who helped put MSNBC on the map 25 years ago, is about to exit the cable news network.
He is signing off from his 11 p.m. Eastern program, "The 11th Hour," for the final time on Thursday night, a network spokesperson confirmed.
Williams has been alluding to his departure date during segments with some of his regular guests, and viewers have been tweeting out tributes to him.
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