| Release Date | December 27, 1974 | |
|---|---|---|
| Status | Released | |
| Original Title | Dr. Watson and the Darkwater Hall Mystery | |
| Runtime | 1h 10min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | BBC | |
| Release Date | December 27, 1974 | |
|---|---|---|
| Status | Released | |
| Original Title | Dr. Watson and the Darkwater Hall Mystery | |
| Runtime | 1h 10min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | BBC | |