"Not sure if you've heard but @missmayim and @kenjennings are hosting me until the end of the year. Everyone on the staff is supralunar," the post reads.
Bialik will host new episodes through Nov. 5, after which she and Jennings will "split hosting duties as their schedules allow," Sony Pictures Television said.
Bialik, an actress known for playing Amy on The Big Bang Theory, was originally announced in August to host new Jeopardy! primetime specials and a potential spinoff series. She was later confirmed to guest host the regular game show in the wake of Richards' departure.
Jennings is a former Jeopardy! contestant who holds the record for the longest winning streak on the show and the highest winnings in regular season play. He previously guest hosted Jeopardy! following longtime host Alex Trebek's death in November 2020.
Jeopardy! dedicated a stage to Trebek during its episodes this week. This week's shows have also seen contestant Matt Amodio win his 21st game, giving him the third-most consecutive wins after Jennings and James Holzhauer.