#OnThisDay 1981: This is how the BBC put its programmes on air 40 years ago, as well as the bits in-between. "We're disc jockeys with pictures, if you like." | BBC Archive

#OnThisDay 1981: This computer has provided BBC Archive with music for the past 36 years. Only 51 more to go. | BBC Archive

28M views · 473K reactions | #OnThisDay 1981: A toddler with an ear for identifying classical composers appeared on That's Life. This is very sweet. "He's on with the Brahms' Fourth Symphony again." | BBC Archive | Facebook

#OTD 1980: Newsnight reported on Britain's plans to protect the civilian population from a nuclear attack. | BBC Archive

1.2M views · 12K reactions | #OnThisDay 1981: Distinguished actor Michael Hordern showed us how 40 years earlier, he'd prepared for World War Two action by riding around an airfield on an ice cream bicycle. | BBC Archive | Facebook

2.8K views · 106 reactions | #OnThisDay 1951: BBC Newsreel reported on election night, clearly well before voter fatigue was a thing. | BBC Archive | Facebook