When did The One Show Season 6 Episode 21 air?
The One Show Season 6 Episode 21 aired on February 7, 2011.

Hollywood star Sigourney Weaver joins Matt Allwright and Louise Minchin in the studio. With reports on the dangerous life of undercover cops and the history of Fleet Street exclusives.
Direct answers for episode-level questions and details.
The One Show Season 6 Episode 21 aired on February 7, 2011.
This episode runs for approximately 30 minutes.
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