Some very interesting minutiae I’ve picked up while going through the DVD set:

• Gabrielle Drake, who played Lieutenant Ellis, is the brother of the late musician Nick Drake, whose Pink Moon track was used on a Volkswagen TV commercial earlier this decade in North America.
• Lois Maxwell, who pleyed Miss Moneypenny for many years in the James Bond film series, also did a short stint on UFO as...Miss Holland! A secretary, no less. Imagine that.
• An unfilmed episode, ”The Patriot,” was heavily influenced by events at the time in Rhodesia, which was what Zimbabwe was known as before Robert Mugabe and his DFCs took it over. When you read it, you’ll understand why it wasn’t filmed.

Good thing too. Stuff like this just makes it more interesting to watch nowadays, in retrospect to everything that’s happened since this series originally aired.