Gmelon, I love the Colonel March series as well. Joan Sims has her 1953 film debut as a secretary in one of the first three episodes, as they joined the first three episodes together to create a film version. Apparently Boris Karloff had a pin hole in his eye patch so that he could see what was going on. Have you noticed that Colonel March’s policeman sidekick changes accents half way through the series (or between each episode if the series order has been muddled up). In half the episodes the sidekick has a nondescript English accent and in the other half he has a Scottish accent!