Early material was mostly aimed at secondary school pupils and seen as a convenient method of demonstration in subjects such as science and geography.

In the early 1960s, there was a lot of interest in the medium as a way of educating children with certain learning difficulties, and in 1962, the BBC produced Television Club which presented stories in a drama serial format.

The serial took the format, which the programme would continue for many years, of each episode's story being divided into two instalments with an educational section in the middle to teach children the relevant material.

The plots of the stories were written to appeal to children, initially inspired by adventure serials, and often featured puzzles for the characters to solve using their reading skills, which was also reflected in the material given to pupils.

Each serial was also written with a limited vocabulary in mind, each of the keywords paced through the piece a certain number of times so they held a certain relevance above other words.

The producers also began making use of the internet as a teaching aid for the programme, allowing children to access games and material through a dedicated website, although the BBC have since removed the sites due to dwindling use, to the dismay of some teachers.

Many of the lyrics, such as the 'Clue Song' with Dog Detective, the Karate Chopper and 'Bill the Brickie', were written by Patricia Farrington, who also created the characters.