The first week of guest-hosted shows will air the week of January 11, 2021. The show will resume with Ken Jennings, a former contestant who was deemed the "Greatest of All Time" in January, as the first to guest host following Trebek's death.
More guest hosts will be announced in the weeks to come, says Sony Pictures Television.
Jennings responded to the Tweet with one of his own.
Jennings first appeared on "Jeopardy!" in 2004, winning 74 straight games.
Years later, Jennings took on Watson, an IBM super computer the size of 10 refrigerators.
During an episode that aired in November of past year, Trebek got choked up after a contestant wrote "We love you, Alex" as his response in Final Jeopardy.
Alex Trebek, the beloved host of "Jeopardy", passed away earlier this month.
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They are not naming a long-term replacement for host at this time.
"Alex believed in the importance of Jeopardy! and always said that we wanted to show to go on after him", executive producer Mike Richards says.
"I'm delighted to have the opportunity to remain involved with my favorite show", Jennings said before the show returned to the air in mid-September after a pandemic-induced hiatus.
"Jeopardy!" wrapped production with Trebek on October 29, a little more than a week before his death from pancreatic cancer on November 8.
No word on when the show will announce a permanent host.
Jennings' episodes begin on January 11.
Originally, Jeopardy! said it would have new episodes taped before Trebek's death through December 25. Trebek did not know the last show he recorded - taped October 29, 10 days before his death - would be his last episode.