From 24th April 1978. This video is part of a collection of old television clips posted on UK Nova I believe. The originator of the clip who is a collector and got these clips from old Philips N1500 and N1700 video cassettes. When there were no programmes to show, the testcard was shown, with music or a test-tone. This was to aid you or an engineer in setting up your set. There were no auto setup TVs in those days. The girl in the testcard is Carole Hersey, daughter of the late BBC Engineer George Hersey who designed Testcard F. The clock is real, shot in monochrome and with colour added electronically. The clock face would be gray, and the BBC1 logo white with a black background. Black became blue, gray became yellow, and White became electronic white. You will see that the hands cast shadows, and the shadows were coloured in blue.
