To start with, I guess I should warn those who are not familiar with this program that the humor is not for everyone. It goes from very interesting and intellectual (the title "QI" stands for Quite Interesting) to the scatological and rather crass. Anyway, that said, in the episode referenced in the title, the host, Stephen Fry, explains Moore's Law. As he does so, he shows a number of vintage computer items borrowed from Bletchley Park. The episode is the latest one (aired last week I think) and is available on YouTube.
Bill S.