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Just a little more on the sub-topic of the 1953 Coronation:
Information from James Russell, of colourisation.com:
"Pye Ltd. demonstrated a 150 frame sequential 405 line closed circuit system at Guy's Hospital in 1950 by sequential additive colour scanning using three-colour rotating discs on both the camera and the receiver. The bandwidth requred was 9 Meg. It was later, in the same year, installed at St. Thomas's Hospital, London.
For the Coronation procession, Pye installed cameras on the roof of a building in Parliament Square and connected by 575 Mc/s radio link to great Ormand street. On the previous day, two directly-viewed receivers were used to give pictures of 16in by 12in and a projection set to give 4 ft by 3 ft. Excellent pictures were seen, the definition and the colour rendering both being good. The colour tubes were of the Lawrence type ( Chromatic Television Inc )."
Additionally, he mentions that a 3D Film documentary was also made of the Coronation.
-Kevin
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