Who Do You Think You Are?

Season 1

10 episodes

Season 2

6 episodes

Season 3

8 episodes

Season 4

7 episodes

Season 5

8 episodes

Season 6

11 episodes

Season 7

9 episodes

Season 8

10 episodes

Season 9

10 episodes

Season 10

10 episodes

Season 11

10 episodes

Season 12

10 episodes

Season 13

10 episodes

Season 14

10 episodes

Season 15

8 episodes

Season 16

8 episodes

Season 17

4 episodes

Season 18

7 episodes

Series 19

5 episodes

Series 20

9 episodes

Series 21

7 episodes

Series 22

8 episodes

Series 23

8 episodes