Jonny Briggs was a TV series which ran from 1985 to 1987. The most memorable thing about the show was the theme tune (played on trombone I think).
Jonny Briggs was a boy who lived with his mum, dad, his sister Rita, his brother and their dog "Razzle". His arch-enemies were a pait of twin sisters that were always trying to get him in trouble.
I think it may have been set in Yorkshire / Lancashire judging by the accents.