The Sign of Four
- Sal: 1983
- Welat: United Kingdom
- Genre: Adventure, Crime, Mystery, TV Movie
- Studio: Granada Television, Mapleton Films
- Keyword: treasure, river, doctor, pearl, sherlock holmes
- Serek: Desmond Davis
- Avdan: Ian Richardson, David Healy, Thorley Walters, Michael O'Hagan, Cherie Lunghi, Joe Melia