Long-running Channel 4 documentary series covering issues about British society, politics, health, religion, international current affairs and the environment. Known for featuring a mole inside organisations under journalistic investigation.
8 episodes
1987
34 episodes
1988
39 episodes
1989
39 episodes
1990
35 episodes
1991
34 episodes
1992
1 episodes
1 episodes
1998
1 episodes
1 episodes
2 episodes
1 episodes
2012
23 episodes
2015
28 episodes
2016
28 episodes
2017
26 episodes
2018
28 episodes
2019
10 episodes
2020
1 episodes
2021
21 episodes
2022
8 episodes
2023
13 episodes
2024
3 episodes
2025
1 episodes
2026