Five years ago to this day, at 21:55, we threw on the switches for the first official television and radio news recordings for our Broadcast news service. It was, of course, the day of the General Election, and we decided to kick off our service the moment the polls closed - or five minutes beforehand, to be precise, as that it when the all-night news programmes began.

BBC1's election night broadcast, 6 May 2010

Things were simpler then. We had only just acquired the system for recording TV and radio programmes off-air, and there were a few teething troubles. So we started cautiously, and recorded just four programmes on that first day - the BBC 1, BBc Radio 4 and ITV election broadcasts, and Channel 4's Alternative Election. the following day we boldly upped the ante to record 15 programmes, adding broadcasts from the channels BBC News, World Service, Al Jazeera English and CNN.

ITV's election night broadcast, 6 May 2010

Five years on, and things have grown. For 6 May 2015 we will be recording some fifty programmes from twenty-two channels: BBc1, BBC2, ITV, Channel 4, BBC 4, BBC News, BBC Parliament, Al Jazeera English, RT, CNN, Bloomberg, CCTV, Sky News, France 24, talkSport, BBc Radio 5 Live, BBC World Service, LBC, BBcCRadio 1, BBC London, BBC 1 Scotland and STV. We won't know until a day or two later how many programmes we've recorded, because we catch up on some unscheduled programmes after broadcast (such as the many General Election interviews and campaign events currently popping up on BBC Parliament), but it will amount to some 50 hours of TV and radio recorded for that day.

Channel 4's Alternative Election, 6 May 2010

Over the five years we have recorded some 45,700 television programmes and 12,100 radio programmes. We record mainly news programmes, though we interpret news quite broadly and include current affairs, interviews, documentaries, live broadcasts and so on. The top 10 most recorded channels are BBc 1 (6,410 programmes), BBC Radio 4 (6,144), ITV1 (5.604), BBC News (4,865), Sky News (3,457), Russia Today/RT (3,153), NHK world (2,995), CCTV [China] (2,918), BBC World Service (2,647) and Al Jazeera English (2,552).

All of the programmes are available on any Library terminal at our St Pancras and Boston Spa sites. For reasons of copyright we cannot make the programmes available online. You can find records of what we have on Broadcast News on the Explore catalogue, but for the most up-to-date records and the fullest service - including word-searchability of programme subtitles - it is best to go to the Broadcast News site, which you can find under the Sound and Moving Image services page on any Library terminal, or just look for http://videoserver.bl.uk (please note, this link only works if you are located at one of our sites and working from a British Library terminal).

And here's to the next five years of news.