Factual error: Two vehicles in this episode date from after 1969 when this episode is set: in the first scene the Austin Maxi is a 1971 model, and the mobile library is J registered, which means it was first registered after August 1970.
| All season 7 mistakes | Mistakes | |
|---|---|---|
| 1 | Oracle | 0 |
| 2 | Raga | 0 |
| 3 | Zenana | 0 |
