Lucy Pearson is trying to find a way to get her mother to marry Mr Harding, her new headmaster and next door neighbour – despite the fact that Mr Harding is an over-strict headmaster whose conduct and rules antagonise teachers and pupils alike, and Mrs Pearson as well.
- Writer: Marion Turner (under pen-name: Fiona Turner)
- Script submitted had the title Patti and the PTA but was changed to Mum and Mr Harding for publication. The protagonist’s name also changed from Patti to Lucy.
- Mum and Mr Harding – Mandy: #715 (27 September 1980) – #729 (3 January 1981) [no episode #721]