Beijing has started airing a heavyweight documentary on former Chinese president Jiang Zemin as part of commemoration events marking the centenary of his birth, expected to culminate on Monday in a grand ceremony presided over by President Xi Jinping.In the lead-up to the anniversary, state broadcaster CCTV launched a 12-episode documentary titled Jiang Zemin, with the network’s flagship CCTV-1 airing two episodes nightly at prime time from Tuesday.The series was jointly produced by the ruling...