 To create the effect of a parallel universe, every scene in the episode's teaser was flipped so that the mirror image was shown. In order to render words correctly, letters had to be re-written backwards so that they yielded the correct spelling. Monica Reyes' Georgetown apartment address is 67 Bennett Avenue. This is a reference to Rod Serling's address in Binghamton, New York. Furthermore, her apartment number 6, is a reference to Patrick McGoohan's number in the 1967 television series, The Prisoner.
