Wikipedia
Interbang‽ was an Italian television series created by Paul Casalini which prominently featured the interbang or interrobang symbol (‽), a combination of the exclamation point and the question mark.
In Italy it was broadcast on Odeon TV. In the UK the show was broadcast on The Children's Channel in the late 1980s and on the Terrestrial Channel ITV.
The series featured two teenagers, Gianni and Bruno, who were trying to collect a number of special souvenir statues of the Pisa Leaning Tower, scattered all across the world, whilst trying to prevent a group of criminals also getting their hands on the statues. Each statue granted its holder a different magical ability. Each episode a different statue would be recovered by one of the opposing sides, with each statue displaying a different coloured version of an interrobang.