'Life in the Freezer' ??

Recorded tonight an episode entitled "Life in the Freezer." Can't figure this out because it is not listed among the episodes here, and in fact is the name of a British documentary from 1993. It is narrated by Alec Baldwin. So, is this simply one of the other episodes renamed? An episode just for the USA? Or what?

Aired on Animal Planet at 10pm on May 4, 2012 and at 1am on May 5.