The first season airing in 2010, three seasons totaling 120 episodes have been shown as of 2012.

A further seven series, totalling 57 episodes, would eventually be made between 1962 and 1974.

Later that month, the show was picked up for a full season, which would total 22 episodes.

The show premiered in October 1988 and ran for one season, totaling 26 episodes.

The series totals 50 episodes, each one consisting of 1 to 2 parts.

The series finished its run on July 6 of the same year, totaling 13 episodes, with the possibility for two further seasons.

Four series and a special have been broadcast, totalling 20 episodes.

The programme ran to four series between 1966 and 1968, totalling 26 episodes.

It ran for four series and totalled 26 episodes, including a 35 minute pilot episode in 1987.

In October, 2010, the show was picked up for a full season, which would total 22 episodes.