How are 'Jeopardy' Ratings with Aaron Rodgers? The ratings for Ken Jennings' six-week stint as host of "Jeopardy!" were extremely high. Will The show's ratings with Aaron Rodgers keep up? Jennings' entire debut week in January attracted an audience of 10.3 million viewers, second only to Alex Trebek's final week as host this season. Other guest hosts, such as Katie Couric and Dr. Oz, have taken their turn behind the hosting lectern since then. However, the scores haven't been as good. According to The Wrap, Couric's first week as a guest host on "Jeopardy!" saw a 5% drop in ratings. After that week, the quiz show, which had dominated syndication during Jennings' tenure as host, tied for first place in household ratings with "Wheel of Fortune." "Jeopardy!" fell to second place behind "Family Feud" during Couric's second week.