Does anyone remember the show 'Hunter'?
I'm not really sure how to describe it in a way that will make people remember it but here goes:
....he had a pet mouse and he used to ride around on his bike solving sort of scientific questions, for example something like "How is Ice-Cream Made?"
Hunter had a moustache and would wear a hat and trench coat all the time and he would take his mouse on his investigations on his bike. The mouse sat in a little custon made house sort of thing which was postioned on the handle bars of his bike.
Ring any bells?
anyways I really love this community, reading back through all the posts has just made me so happy, remembering all the shows that I loved when I was little. Thanks everyone :D