"Echo" is the original pilot of Dollhouse, and it was written and directed by Joss Whedon. Produced in April/May 2008, "Echo" contained the first footage of Dollhouse ever to be released to public. "Echo" was the first episode written and shot, but it was pushed back by Whedon to become the second episode because of "a few clarity issues for some viewers" and "also some slight issues with tone". By October 2008, "Echo" disappeared from official episode listings, since it has been used for parts in other episodes of Season 1. It is therefore not considered canonical or part of the first season, but it was, however, included as a special feature on the Dollhouse Season One DVD..