📺 Police series 'Z Cars' premieres. Tuesday 02 January 1962 ~ BBC1: 20.30 A new police series: The call-sign is ZULU - they call them Z Cars. There are two young constables in each, ready to deal with trouble as it happens. The formative years of the series adopted a “live” transmission policy, meaning a tense, rough and ready edge to scenes and dialogue, plus there was plentiful reliance on the old “out the rear window” back projections. All crowned with peerless whistle-along theme “Johnny To