Below is a complete Decoding the Past episode list that spans the show's entire TV run. Photos from the individual Decoding the Past episodes are listed along with the Decoding the Past episode names when available, as are the dates of the original airing of the episode. Decoding the Past episodes from every season can be seen below, along with fun facts about who directed the episodes, the stars of the and sometimes even information like shooting locations and original air dates. Vote for your favorite items on this poll, including “The End of the World,” “The Other Nostradamus” and more. Are you remembering a funny scene but can't think of the name that the Decoding the Past episode is from? Scroll below and you'll find what you're looking for.