Dr. Watson and the Darkwater Hall Mystery
- Blwyddyn: 1974
- Gwlad: United Kingdom
- Genre: Mystery, TV Movie
- Stiwdio: BBC
- Allweddair: sherlock holmes
- Cyfarwyddwr: James Cellan Jones
- Cast: Edward Fox, Elaine Taylor, Christopher Cazenove, Jeremy Clyde, John Westbrook, Terence Bayler