Only three of the four episodes are held in the BBC archives; one remains missing.

The original memo on the subject still exists in the BBC archives.

Only one of the four episodes is held in the BBC archives; three remain missing.

The filmed stories have been added to the BBC archives.

They also include audio and video clips from BBC archives.

Mention of the deal can still be found in the BBC archives.

Only 17 episodes exist in the BBC archives as of 2012.

Elsewhere on this site you can also find videos about various aspects of the BBC archives.

Only two of the six episodes are held in the BBC archives; four remain missing.

Only one of the six episodes is held in the BBC archives; five remain missing.