When did The X Factor Season 7 Episode 20 air?
The X Factor Season 7 Episode 20 aired on November 7, 2010.

Dermot O'Leary hosts the live results show. The remaining performers will be on tenterhooks as the results of the public vote are revealed, as the two acts with the lowest number of votes must sing for their survival in the final showdown.
Direct answers for episode-level questions and details.
The X Factor Season 7 Episode 20 aired on November 7, 2010.
This episode runs for approximately 60 minutes.
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