I too remember the programs the first time, I was very disappointed it was not continued. My first exposure to wargames on telly were the Callan programs (& later the film) I was SO envious of his wargames army (which fitted into a shoebox in the TV series) also the little references, such as forging a rare figure. His sidekick 'Lonely' suggesting casting half-crowns (12.5p) bits instead then looking at the mold when Callan told him how much the figure would cost.
I did have the honour of meeting both Paddy Griffiths & Peter Guilder years latter, both were gentlemen.