| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Episode 40 |
September 1, 1988
BBC One
|
50 | |
| S04E02 | Episode 41 |
September 8, 1988
BBC One
|
50 | |
| S04E03 | Episode 42 |
September 15, 1988
BBC One
|
50 | |
| S04E04 | Episode 43 |
September 22, 1988
BBC One
|
50 | |
| S04E05 | Episode 44 |
September 29, 1988
BBC One
|
50 | |
| S04E06 | Episode 45 |
October 6, 1988
BBC One
|
50 | |
| S04E07 | Episode 46 |
October 13, 1988
BBC One
|
50 | |
| S04E08 | Episode 47 |
October 20, 1988
BBC One
|
50 | |
| S04E09 | Episode 48 |
October 27, 1988
BBC One
|
50 | |
| S04E10 | Episode 49 |
November 3, 1988
BBC One
|
50 | |
| S04E11 | Episode 50 |
November 10, 1988
BBC One
|
50 | |
| S04E12 | Episode 51 |
November 17, 1988
BBC One
|
50 | |
| S04E13 |
Episode 52
season finale
|
November 24, 1988
BBC One
|
50 |
No artwork of this type.
No artwork of this type.