Sezon 4
Bölümler
1 Danger 29 Eyl 2006 
2 Discoveries 6 Eki 2006 
3 Dogs 13 Eki 2006 
4 Dictionaries 20 Eki 2006 
5 Death (Halloween Special) 27 Eki 2006 
6 Drinks 3 Kas 2006 
7 Differences 10 Kas 2006 
8 Descendants (Children in Need Special) 17 Kas 2006 
9 Doves 24 Kas 2006 
10 Divination 1 Ara 2006 
11 Deprivation 8 Ara 2006 
12 Domesticity 15 Ara 2006 
13 December (Christmas Special) 22 Ara 2006