The following is a list of episodes of the American science fiction television drama Eureka. Seventy-seven episodes were aired over five seasons. In addition to these episodes, there is a short webisode series called "Hide and Seek", which was available on Syfy's Eureka homepage.
The episodes of the first season were not aired in the order intended by the show's creators, resulting in small inconsistencies. However, these were supervised and controlled. In podcast commentaries, the show's creators and its star Colin Ferguson confirmed that the production order was that in which the producers intended. However, network executives changed the order to try to place the stronger episodes earlier in the run to attract viewers.[1]
The creators made minor changes through edits and they redubbed dialogue in later episodes (for instance, they removed the explicit mention of Zoe's first day at school) to minimize audience confusion.[1]