Gloria frequently wears short skirts, much to her father's annoyance.

Mr Parkin pines after May throughout the series.

Moments of flirtation, some of which may be regarded as sexual harassment by modern standards, but the series takes place at a time when attitudes to it were generally more relaxed.

Any violence in the series is merely slapstick.

References to World War II.

Occasional mild insults such as 'beast', 'swine', etc. One or two uses of 'damn', which isn't considered particularly strong language in the UK.

Harry frequently complains about 'ruddy trains'.

Characters consume alcohol (or are mentioned to do so) in most episodes.

Infrequent uses of medicinal drugs, such as aspirin.

The series takes place at the time of the Beeching cuts of the 1960s, and the staff worry about whether the station will be closed, which would result in them losing their jobs. This question is ultimately left unanswered.