Billy the Bus: Regarding Jimmy Edwards - the programme you are thinking about is "Whacko" which was transmitted on BBC-tv between 1956 to 1960 and revived in 1971/72. The school was Chiselbury and Jimmy played the conniving headmaster. The fictional "St Swithin's School" is dealt with in the play and later 1950 film "The Happiest Days of Your Life" starring among others Alistair Sim and Margaret Rutherford.