Few editions of this program are known to survive, possibly as few as four.
This show was broadcast live, throughout its run. The first recording of the show took place in 1949, meaning that all previous episodes are permanently lost.
This series broadcast two hour-long episodes per week.
This series was the first long-term success of the BBC Television Service, lasting for 16 years.
This show was in hiatus from 1939 to 1946. The BBC Television Service itself was discontinued for the duration of World War II, and returned in 1946.