The survival rate of the series in the archives is rather hit-and-miss: from the first season, six episodes are presently known to survive, as with season four. Thereafter, there are sixteen surviving episodes of the second season, and two apiece from the fifth and sixth seasons. The final season still survives intact.
Camelot on a Clear Day (1970) is the sole example still preserved on its transmission format of colour two-inch videotape, the remainder being monochrome 16mm film recordings. Additionally, a remount of
You're Not Going to Believe This, But... (1969) was made on colour film as an experimental test piece with a different cast, though this was never broadcast. Two off-air soundtracks also survive:
Kitchener Knew It Well (1968) and
Really, She Did, She Really Did (1969).
