We are in the midst of watching Alex Trebek's final episodes of Jeopardy. Tomorrow will be his final appearance before he passed away in November. The show will also feature a tribute to Alex so you want to make sure you're watching or taping tomorrow night's show. We know that Ken Jennings will be taking over the reins beginning on Monday as the first in a series of guest hosts for the show. The producers of Jeopardy are in no hurry to name a permanent replacement for a man who cannot ever be replaced. And now we know that Katie Couric will be guest host number two. She'll fill in for a week's worth of episodes. So far Ken and Katie are the only names that Jeopardy has confirmed as guest hosts. Other names being tossed around include George Stephanopoulos, James Holzhauer and Snoop Dog. We'll have to wait and see if any of those folks are confirmed as guest hosts.