The Big Questions - Seasons (13)

Season 1 (Number of Episodes - 24)

Sep 9, 2007

Season 2 (Number of Episodes - 35)

Dec 28, 2008

Season 3 (Number of Episodes - 14)

Nov 30, -0001

Season 4 (Number of Episodes - 3)

May 22, 2005

Season 5

Nov 30, -0001

Season 6 (Number of Episodes - 17)

Jan 6, 2013

Season 7 (Number of Episodes - 2)

Nov 30, -0001

Season 8

Nov 30, -0001

Season 9 (Number of Episodes - 20)

Jan 10, 2016

Season 10 (Number of Episodes - 20)

Jan 8, 2017

Season 11 (Number of Episodes - 19)

Jan 7, 2018

Season 12 (Number of Episodes - 10)

Jan 6, 2019

Season 13 (Number of Episodes - 8)

Feb 2, 2020

Originally scheduled for 10 episodes, series 13 was cut short after the 8th episode due to the COVID-19 pandemic.