British telecom has had a lot of product placement over the years but this was the first story to show a van with the B.T. logo (rather than the old yellow cans with blue livery). This was probably filmed around the time the government sold its final shares in the company.
The first episode to be made by Blue Heaven Productions, a company owned by executive producers Christine and Graham Benson.
The last storyline to feature Ken Kitson as DS Martin.
The last storyline to feature Dave Hill as Freeborn (voice only).