Today's birthdays:
| Finlay Currie born | 20 January 1878 |
| Tom Baker born | 20 January 1934 |
| Liza Goddard born | 20 January 1950 |
| Ingeborga Dapkunaite born | 20 January 1963 |
Today's anniversaries:
| The Case of the Dual Personality starring Gordon | 20 January 1935 |
| The Adventure of the Empty House starring Hollback | 20 January 2016 |