After much frustration I finally found the solution myself. Here it is to prevent anyone else getting grey hairs:

1. Guide list (programme schedule)

2. Red button on remote (square one which shows “Go to top”)

3. Select “Tools” from top menu (three white lines with “Tools”) on far left

4. Select “Timer list” from menu

5. Select the programme you want to cancel

6. Select the rubbish bin icon on the right of the programme and select “delete”

For one thing, naming the red option button ‘go to top’ is very misleading as you think it would simply take you to the top of the schedule listings. Perhaps Sony should rename it ‘Menu’. I wonder if ‘lost in translation’ is a factor here. 

In the absence of ANY clear instructions for this model TV, how to cancel a recording is not that easy to find. I’ve also yet to find any instruction on functions for the new style remote control which came with this TV. Most is self explanatory, but not all. The documentation which came with my TV shows diagrams of an older remote with different buttons! 

I did come across reference to Timer list somewhere on the web but thought it was a different term for Record List. There is a Record List button on the remote.

I hope this is clear and will help others.