Task: Explanation
Input (English): Eureka is an American science fiction television series that premiered on Syfy on July 18, 2006. The fifth and final season ended on July 16, 2012. The show was set in a fictional town of Eureka, Oregon (although, in the pilot episode, Eureka was located in Washington State – and the origin of a diamond in the episode "Best In Faux" was shown as Eureka, California). Inhabited almost entirely by scientific geniuses, most residents of Eureka work for Global Dynamics – an advanced research facility responsible for the development of nearly all major technological breakthroughs since its inception. Each episode featured a mysterious accidental or intentional misuse of technology, which the town sheriff, Jack Carter, solved with the help of town scientists. Each season also featured a larger story arc that concerned a particular major event or item. Question: The TV series James Callis joined in 2010 premiered on what date? Answer: July 18, 2006
Output (English): Eureka is an American science fiction television series that premiered on Syfy on July 18, 2006.