Research Unit - Seasons
Season 1
2006
•
4 episodes
Season 2
2007
•
8 episodes
Season 3
2008
•
10 episodes
Season 4
2009
•
14 episodes
Season 5
2011
•
14 episodes
Season 6
2012
•
10 episodes
Season 7
2013
•
16 episodes
Season 8
2014
•
12 episodes
Season 9
2015
•
12 episodes
Season 10
2016
•
13 episodes
Season 11
2017
•
14 episodes
Season 12
2018
•
14 episodes
Season 13
2019
•
14 episodes
Season 14
2021
•
8 episodes
Season 15
2022
•
2 episodes
Season 16
2024
•
6 episodes