[Nine shows with big revamps at the end of Season 1](http://www.tvsquad.com/2007/08/20/nine-shows-that-dramatically-changed-from-the-first-to-second-se/). [Explanation of RetCon](http://en.wikipedia.org/wiki/Retcon).
TV RetCon
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[Nine shows with big revamps at the end of Season 1](http://www.tvsquad.com/2007/08/20/nine-shows-that-dramatically-changed-from-the-first-to-second-se/). [Explanation of RetCon](http://en.wikipedia.org/wiki/Retcon).
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