Secret History (1991)
- HD 1080
- Runtime: m.
- Status: Returning Series
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- Languages: en
- Country: United Kingdom
- Production_studio: 3BM Television
- Seasons: 17
- Episodes: 117
- First air date: 1991-11-14
- Last air date: 2017-11-12
- The Secret History is featured in the top rankings of 1991
- #1 in Top Documentary Series of 1991
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.