Colour video was slowly introduced into broadcast. It was therefore necessary to make it compatible with black and white receivers and to design colour receivers or televisions to be able to receive ...

In the best of all possible worlds, this form of SMPTE timecode - where the numbers all move in simple cycles: hours 0 - 23, minutes 0 - 59, seconds 0- 59 and frames 0- 29 (0 - 24 or 0 - 23) would ...