Long before 1990s sitcoms, Black comedians were shaping American comedy in bold ways. Geoff Bennett, co-anchor of PBS NewsHour, explores this history and its lasting impact in his new book "Black Out Loud." "CBS News Sunday Morning" features stories on the arts, music, nature, entertainment, sports, history, science and Americana, and highlights unique human accomplishments and achievements. Check local listings for "CBS News Sunday Morning" broadcast times....