alt Hacker NewsAlso, where I live, radio transmitted the precise time in the most low tech way possible. A person said: "It is XX:XX time with the beep" and this was followed by four beeps, three short, one long, with the end of the last beep signifying the exact moment of the announced time.
We had a similar beep scheme, except it would play before the next programme stated, typically before the morning/evening news.