This week, Jeopardy is back with the final week of shows featuring the late Alex Trebek. The shows were taped on Oct 29th, which was just ten days before Alex finally succumbed to cancer, who had been the only host of Jeopardy since the show premiered in 1984.
Next week, there will be guest hosts each including all-time Jeopardy champion Ken Jennings. I've heard rumors that both Jennings and LeVar Burton (from Roots, Reading Rainbow, and Star Trek: The Next Generation) are also being considered as the permanent host of the show.
It's hard to picture any other host than Alex!