I remember speaking to people who'd missed it - possibly at school, and there were very few people who had seen it. I remember that my being able to reproduce the theme tune accompanied by drumming on a desktop was considered rather good.

Quite a few youngsters watched the program from behind the sofa - it might seem fairly tame now but back then it was rather alarming.

I had a look for information about the first program, and found parts of it available to watch - amazing!

It was Ian Chesterton, with Barbara Wright, who intruded on the irascible doctor.