Even before Newman's arrival, some BBC producers were attempting to break the mould, with Elwyn Jones, Troy Kennedy Martin and Allan Prior's landmark police drama series "Z-Cars" shaking up the image of television police dramas and becoming an enormous popular success from 1962 onwards. Newman, however, restructured the entire department, dividing the unwieldy drama group into three separate divisions: series, for on-going continuing dramas with self-contained episodes; serials, for stories told over multi-episode runs, or programmes which were made up of a series of serials; and plays, for any kind of drama one-offs, an area Newman was especially keen on following the success of "Armchair Theatre" at ABC.