| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Eurodiddy |
June 25, 2018
CBBC
|
15 | |
| S04E02 | Call the Didwife |
June 26, 2018
CBBC
|
15 | |
| S04E03 | The World's Strongest Diddy |
June 27, 2018
CBBC
|
15 | |
| S04E04 | Vote for Me |
June 28, 2018
CBBC
|
15 | |
| S04E05 | Singing Hospital |
June 29, 2018
CBBC
|
15 | |
| S04E06 | Whiffwang |
July 2, 2018
CBBC
|
15 | |
| S04E07 | Eggyheads |
July 3, 2018
CBBC
|
15 | |
| S04E08 | Don't Touch the Box |
July 4, 2018
CBBC
|
15 | |
| S04E09 | Big Chin Day |
July 5, 2018
CBBC
|
15 | |
| S04E10 |
A Very Diddy Christmas
series finale
|
December 20, 2018
CBBC
|
15 |
No artwork of this type.
No artwork of this type.
No artwork of this type.