7.8
History's Greatest Mysteries
2020· TV Series
Portillo's State Secrets (2015)
First aired March 23, 20151 season · 10 epsRunning
Overview
Michael Portillo takes a look through the national archives to discover different stories that have been hidden in previously classified documents.
Top Billed Cast
Seasons
Status
Returning Series
Language
English
Type
Scripted
Last Air Date
April 3, 2015
Networks
BBC Two
Recommended for You
7.1
The Watcher
2022· TV Series
7.2
Beyond Belief: Fact or Fiction
1997· TV Series
6.8
Diners, Drive-Ins and Dives
2007· TV Series
6.2
White House Plumbers
2023· TV Series
6.6
American Experience
1988· TV Series
7.9
The Terminal List
2022· TV Series
7.3
A Haunting
2005· TV Series
7.4
How to Become a Tyrant
2021· TV Series
6.7
The Twilight Zone
2019· TV Series
New
6.0
The Testaments
2026· TV Series
7.9
The Civil War
1990· TV Series
6.3
Secrets of the Dead
2000· TV Series
7.3
The Terror
2018· TV Series