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 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.