I too remember the show. I was 9 when my parents bought a tv to watch the coronation in 1953. I found Billy Bean facinating. The mechanical mechanism that worked as that egg roller was wonderful to watch and as I was interested in finding out how stuff worked it appealed to me. Most of the action was technical based, I remember tv tech jargon of the time being used or I should say misused,like cartoonerator. Theme tune/song "he built it out of bits of string and nuts and bolts and glue". It is such a pity that recording was not possible in those days. How would I find out if any link film was ever made ??