We already know that Katie Couric and Aaron Rodgers are guest-hosting "Jeopardy!" And now, two more names have been added . . . Mayim Bialik from "The Big Bang Theory" and Bill Whitaker from "60 Minutes". Each guest host will do a week's worth of shows, and they'll receive a donation to the charity of their choice. There's no word what order they're going in, and more hosts will be announced in the future. Former contestant Ken Jennings wraps up his guest stint tomorrow. Executive Producer Mike Richards will do the honors for the next two weeks, to give the other guest hosts time to prepare. A permanent host for the show won't be announced until later this year. So what do you think of the lineup of guest hosts. I'm all for giving everyone a shot!