The series had 130 15-minute episodes, and all episodes have survived.

These recordings were destroyed by Cole in 1961, so few episodes survive.

All 50 episodes of the series survived and can be heard today.

All series two and three episodes survive as 16mm telerecordings.

The series is notable in that all 178 episodes have survived intact.

Little else is know about the series, and it appears that no episodes survive.

In common with many other British television series and sitcoms of this era, not all episodes have survived.

Many episodes of programs from the 1960s survive only through kinescoped copies.

Only a few dozen episodes of the original serial have survived in recorded form.

No episodes survive from the first season of the TV series.