The Demon Headmaster (1996)

Stars:

Terrence Hardiman,  Frances Amey,  Gunnar Atli Cauthery

The show is adapted from four of Gillian Cross's "Demon Headmaster" novels. The first half of the first series is adapted from "The Demon Headmaster", the second half is adapted from "The Prime Minister"s Brain", the second series is adapted from "The Demon Headmaster Strikes Again" and the third series is adapted from "The Demon Headmaster Takes Over".     

Here is the link to the TV show on the Internet Movie database:  http://www.imdb.com/title/tt0194605/?ref_=fn_al_tt_1