I remember this show but I'm pretty sure it was on ITV in about 1991. If it's the same show I remember the kid being picked on at school for being foreign and speaking a different language, and the teacher had to translate what he was saying so the kids would accept him. I definitely remember the fire scene and I seem to remember him having to save a girl as well, who might have had a romantic interest in him. If we're thinking of the same show I remember it airing around October to November 1991.