This episode was filmed in front of the queen.
The original transmission of this episode was 45 minutes long, and labelled a command performance, but all subsequent repeats have been 30 minutes. The extra 15 minutes was footage of the Queen and the Duke of Edinburgh attending the studio recording, standard cast introductions and explanations to the studio audience. A late 1990s showing on the PBS affiliate for Dallas--Ft. Worth, TX, USA, was the full 45-minute version. It also retained the original series title, while US showings (and video/DVD releases there) of all other episodes have been retitled "Good Neighbors" (with that non-British spelling).
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