According to SpikeTV's website, Impact Wrestling on October 6th, 2011 will be a 3-hour episode, airing from 9 PM to midnight.
http://www.pwinsider.com/ViewArticle.php?id=61484
It should be noted that according to the taping schedule, this 3 hour show should be outside of the Impact Zone in Tennessee most likely.
The next week is also likely to be followed with a "Before The Glory" special on October 13th which might be a Live episode.
The last 3 hour Impact concluded with the main event of AJ Styles vs. Kurt Angle which remains a huge classic.