Alex Trebek announced Wednesday that he has pancreatic cancer, saying he’ll continue to host “Jeopardy!” as he battles the disease.

“I have some news to share with all of you, and it’s in keeping with my longtime policy of being open and transparent with my ‘Jeopardy!’ fanbase,” the quiz show host said in a YouTube video posted Wednesday.

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“Just like 50,000 other people in the United States each year, this week I was diagnosed with stage IV pancreatic cancer,” Trebek said into the camera.

“Now normally the prognosis for this is not very encouraging, but I’m going to fight this,” Trebek continued. “And I’m going to keep working. And with the love and support of my family and friends, and the help of your prayers also, I plan to beat the low survival rate statistics for this disease.”

“Truth be told, I have to, because under the terms of my contract, I have to host ‘Jeopardy!’ for three more years,” Trebek quipped.

Last year, Trebek, 78, extended his contract to host “Jeopardy!” through 2022.

“So help me,” Trebek told viewers. “Keep the faith, and we’ll win. We’ll get it done.”

Trebek has hosted “Jeopardy!” since 1984. Born in Canada, he became an American citizen in 1998.

He’s often weighed in on politics, predicting in a 2016 interview with ITK that then-Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonImpeachment hearings don't move needle with Senate GOP GOP divided over impeachment trial strategy 'Too Far Left' hashtag trends on Twitter MORE would win the election. “All of the polls seem to indicate that. And Mr. Trump seems bent on shooting himself in the foot every time he takes a step forward, and that’s unfortunate for him,” Trebek said at the time.

Last year, Trebek moderated a Pennsylvania gubernatorial debate.

"Jeopardy!" has also played host to a bevy of political contestants — and has its share of fans — as it made more than one trip to the nation's capital to film Washington-themed weeks over the years.

Shortly after Trebek's announcement, Sen. Patrick LeahyPatrick Joseph LeahyCongress hunts for path out of spending stalemate This week: House kicks off public phase of impeachment inquiry Senators press NSA official over shuttered phone surveillance program MORE (D-Vt.) offered support on Twitter: