TOS 3×13 ‘Elaan of Troyius’ Trailer Star Trek The Original Series Season 3 Episode 13 ‘Elaan of Troyius’ Trailer TOS 2×13 ‘Obsession’ TrailerDateSeptember 26, 2011In relation toعالم الانترنتENT 3×13 ‘Proving Ground’ TrailerDateJanuary 3, 2011In relation toعالم الانترنتVOY 3×13 ‘Fair Trade’ TrailerDateNovember 26, 2010In relation toعالم الانترنت