The Sign of Four
- Jaro: 1987
- Lando: United Kingdom
- Ĝenro: TV Movie, Adventure, Crime, Mystery, Thriller
- Studio: Granada Television
- Ŝlosilvorto: treasure, based on novel or book, river, doctor, sherlock holmes
- Direktoro: Peter Hammond
- Rolantaro: Jeremy Brett, Edward Hardwicke, Jenny Seagrove, Ronald Lacey, John Thaw, Emrys James