Michael Portillo takes a look through the national archives to discover different stories that have been hidden in previously classified documents.
| Created By | ||
|---|---|---|
| Status | Returning Series | |
| Original Name | Portillo's State Secrets | |
| First Air Date | March 23, 2015 | |
| Last Air Date | April 3, 2015 | |
| Seasons | 1 | |
| Episodes | 10 | |
| Episode Runtime | 0min | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | ||
| Networks | BBC Two | |
