ETP-1 (or Electronic Test Pattern One) was a test card designed and used by the Independent Broadcasting Authority (IBA). After test transmissions from the IBA's Engineering Regional Operations Centre (ROC) in Croydon from 1978 it was phased in on ITV over a period starting from 1979, replacing, in different ITV regions: Test Card F, Test Card G and full screen height EBU colour bars.
ETP-1 (or Electronic Test Pattern One) was a test card designed and used by the Independent Broadcasting Authority (IBA). After test transmissions from the IBA's Engineering Regional Operations Centre (ROC) in Croydon from 1978 it was phased in on ITV over a period starting from 1979, replacing, in different ITV regions: Test Card F, Test Card G and full screen height EBU colour bars.
Source: Wikipedia "ETP-1" · CC BY-SA 4.0
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