It is listed in the list of episodes at the back of the book by Alan JW Bell.
Alan JW Bell may be a good place to start...
This would be a major find if we could work out where a copy exists.
Nothing on the internet about it.
It was produced and directed by Alan JW Bell.
As well as the trio from the Seymour years, it guest starred Keith Marsh.
Keith, who died recently, played the chimney sweep in A Clean Sweep, and is best known as Jacko in Love thy Neighbour.