Ratings for "Jeopardy!", one of the longest game shows ever aired on TV, have dropped following the debut of executive producer Mike Richards' debut as the show's guest host.

'Jeopardy!' Declined Ratings

According to The Wrap, Richards' stint that started on Feb. 22 after a multi-week run of former champion Ken Jennings gave "Jeopardy!" an average of 5.9 ratings, marking a 3% week-over-week decline.

However, the consistent decline in "Jeopardy!" ratings came in the week when Alex Trebek's final episode finished airing.

Other TV game shows such as "Wheel of Fortune" and "Family Feud" earn 5.8 and 5.7 ratings, respectively.

'Jeopardy!' Final Episodes with Alex Trebek

Additionally, "Jeopardy!" received high ratings early this year, when the legendary TV game show host Alex Trebek's final few episodes started running in early January.

His farewell week received a 6.6 rating.

With Trebek's final episode aired on Jan. 8, it drew over 14 million viewers, the only episode that received the highest number of viewers in the past year.

Katie Couric on 'Jeopardy!'

After Richards, Katie Couric is currently running the game show for two weeks starting this week.

READ ALSO: 'Jeopardy!' Champ Dead: Brayden Smith's Cause of Death Revealed

Meanwhile, just in time for International Women's Day, Katie Couric makes history as the first-ever female to stand behind the podium as "Jeopardy!"'s guest host.

In an interview with People magazine, she revealed, "They framed a little thing for me after I was on it."

"It says, 'What iconic journalist and Stand Up to Cancer founder is the first female guest host of "Jeopardy!"!?' And then it says, 'Who is Katie Couric?'"

The 64-year-old's 2-week stint on the show is said to be one of the things she can finally tick off from her bucket list.

Not only is she just hosting, but she's making the hosting gig more special because she's raising awareness and funds for pancreatic cancer research, same cancer that killed Alex Trebek and her sister, Emily, in 2001.

When asked how she found the experience of hosting "Jeopardy!" was like, Couric revealed, "I was a nervous wreck, honestly."

"There are a lot of moving parts behind the scenes, things you need to figure out."

Though she also admitted that it was complicated and mostly required multitasking, she confessed she had "so much fun."

'Jeopardy!' Guest Host List

Ken Jennings, the greatest of all-time player, was the first to become the show's guest host.

After Mike Richards and Katie Couric, other notable names will be hosting "Jeopardy!", including Aaron Rodgers, Bill Whitaker, Mayim Bialik, Dr. Mehmet Oz, and Anderson Cooper.

READ MORE: Alex Trebek's 'Jeopardy!' Replacement: Why Fans Don't Like Dr. Oz as Guest Host