Spiral - Seasons
Season 1
2005
•
8 episodes
Season 2
2008
•
8 episodes
Season 3
2010
•
12 episodes
Season 4
2012
•
12 episodes
Season 5
2014
•
12 episodes
Season 6
2017
•
12 episodes
Season 7
2019
•
12 episodes
Season 8
2020
•
10 episodes