Exposed (UFO)
"Exposed" is the second episode aired of the first series of "UFO" - a 1970 British television science fiction series about an alien invasion of Earth. The screenplay was written Tony Barwick and the director was David Lane. The episode was filmed between 13 May to 23 May, 1969 and aired on the ATV Midlands network on 23 September, 1970. Though shown as the second episode, it was actually the fifth to have been filmed.
UFO (TV series)
The North American DVD release of the series usually follows the production order, with a few diversions; a website ufoseries.com for the show offers seven possibilities of viewing sequence. According to "The Complete Gerry Anderson", the episode "Exposed" was intended to be aired second, but it was produced fifth and appears as the fifth episode in the American DVD release. It was only when the entire series was repeated by BBC Two in 1996–1997 that the series was shown in chronological production order in the UK for the first time.