Secret History has 18 seasons.

Secret History has 130 episodes.

The key characters in Secret History are Presenter (Arthur Williams), Presenter (Helen Castor), Self (Voice) (Dominic West).

Secret History was directed by Tony Stark, Richard Sanders, Allan Francovich.

Secret History was produced by Richard Sanders, John Goddard.

Secret History was a long-running British television documentary series. Shown on Channel 4, the Secret History brandname was used as a banner title in the UK, but many of the individual documentaries can still be found on US cable channels without the branding. It can be seen as Channel 4's answer to the BBC's Timewatch.

Secret History is rated TV-PG.

Secret History is a Dokumentalny, Historyczny show.

Secret History has an audience rating of 6.6 out of 10.

Secret History episodes are 60 min long.

No, this show was canceled after 18 seasons.