I do not have a TV Times / TV Weekly or other contemporary British listing for this episode, if you have one, please get in touch.
International broadcasts
ABN2 Sydney, Australia
6/02/1978
8:30pm
ABV2 Melbourne, Australia
6/02/1978
8:30pm
ABC New York, USA
10/11/1978
11:30pm
TF1 France
14/07/1979
8:38pm
Suisse Romande, Switzerland
French title
Obsession
ZDF Germany
German title
Der Rachefeldzug
KRO Netherlands
24/10/1977
8:25pm
Dutch title
Obsessie
Italy
13/04/80
20:30
Italian title
Sabotaggio?
Spain
21/04/81
11:05pm
Spanish title
La obsesión
Continuity and trivia
15:47 — One of the snippets of RAF training film used to add footage of flying Harriers is so inexpertly edited that you actually see the title
The Engineer in the RAF on screen for a split second.