| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Episode 1 |
January 13, 1972
ITV1
|
||
| S04E02 | Episode 2 |
January 20, 1972
ITV1
|
||
| S04E03 | Episode 3 |
January 27, 1972
ITV1
|
||
| S04E04 | Episode 4 |
February 3, 1972
ITV1
|
||
| S04E05 | Episode 5 |
February 10, 1972
ITV1
|
||
| S04E06 |
Episode 6
season finale
|
February 17, 1972
ITV1
|
No artwork of this type.
No artwork of this type.
No artwork of this type.