A timely reminder to put your clocks forward one hour this weekend, as we enter summer time, with this Radio Times graphic from March 1987.
You may be using the pips to help you reset your clocks, watches and timers. So here’s a short Arena film broadcast as part of their Radio Night in which Dr Carl Dolmetsch noticed that the pitch of the time signal had dropped by a semitone from B natural to B flat and how the BBC corrected it. This programme was transmitted on Saturday 18 December 1993.
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