| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S12E01 | 08/01/2017 |
January 8, 2017
BBC One
|
60 | |
| S12E02 | 15/01/2017 |
January 15, 2017
BBC One
|
60 | |
| S12E03 | 22/01/2017 |
January 22, 2017
BBC One
|
60 | |
| S12E04 | 29/01/2017 |
January 29, 2017
BBC One
|
60 | |
| S12E05 | 05/02/2017 |
February 5, 2017
BBC One
|
60 | |
| S12E06 | 12/02/2017 |
February 12, 2017
BBC One
|
60 | |
| S12E07 | 19/02/2017 |
February 19, 2017
BBC One
|
60 | |
| S12E08 | 26/02/2017 |
February 26, 2017
BBC One
|
60 | |
| S12E09 | 05/03/2017 |
March 5, 2017
BBC One
|
60 | |
| S12E10 | 12/03/2017 |
March 12, 2017
BBC One
|
60 | |
| S12E11 | 19/03/2017 |
March 19, 2017
BBC One
|
60 | |
| S12E12 | 26/03/2017 |
March 26, 2017
BBC One
|
60 | |
| S12E13 | 02/04/2017 |
April 2, 2017
BBC One
|
60 | |
| S12E14 | 09/04/2017 |
April 9, 2017
BBC One
|
60 | |
| S12E15 | 23/04/2017 |
April 23, 2017
BBC One
|
60 | |
| S12E16 |
30/04/2017
season finale
|
April 30, 2017
BBC One
|
60 |
No artwork of this type.
No artwork of this type.
No artwork of this type.