The series was set in the home of an ordinary British family, whose youngest child was a science boffin, who had created Metal Mickey to help around the home. The family consisted of a mother and father, three children and a grandmother. The show was made by London Weekend Television and shown on the ITV network, with the entire run of 41 episodes being written by comedy writer Colin Bostock-Smith.
British comedy actress Irene Handl played the grandmother, whom Mickey affectionately called "my little fruitbat" (she in turn would call him "Fluff"). He also referred to his inventor as "Clever Clogs", his inventor's sister as "Stringbean" and their father as "Bootface". Handl was never at home with science fiction, either watching it or appearing in it. She famously told BBC presenter Noel Edmonds, when he asked her whether she cried over the death of E.T., "Why should I cry over a bleedin' Hoover attachment?"
Metal Mickey's catchphrase was "boogie, boogie", and his favourite treat were Atomic Thunderbusters (which had the appearance of lemon bonbons). At the height of the series' popularity, fizzbomb sweets were marketed in the UK under the name Metal Mickey's Atomic Thunderbusters.