You cut me to the quick!
One of the first programs that I wrote in BBC basic when I first got a BBC model A in 1983 was an applcation called CET. That necessitated typing in 12x288 monthly values from the original paper. No offence to Philip Eden but I am Mr CET, and seriously thought about shoving Tim Legg (the guy who looks after these long term climate data series) under a bus so I could apply for his job when I worked at the MO. There is very little I have not researched about CET and I monitor it daily - but you must know that right?
Check out my blog for confirmation: http://xmetman.com
Bruce.