Alex Trebek has been diagnosed with Stage 4 pancreatic cancer.

TMZ reported that the "Jeopardy!" host announced the news in a video posted to the game show's YouTube page.

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In his message, Trebek, 78, said he was determined to beat the statistics for the deadly disease. He also jokingly said he had to beat the diagnosis because of his hosting contract.

"Jeopardy!" host Alex Trebek has been diagnosed with Stage 4 pancreatic cancer.

Credit: Ethan Miller

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Credit: Ethan Miller

“Hi everyone, 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 our ‘Jeopardy!’ fan base,” Trebek said in in the video. “I also wanted to prevent you from reading or hearing some overblown or inaccurate reports regarding my health. So therefore, I wanted to be the one to pass along this information.

“Now, just like 50,000 other people in the United States each year, this week I was diagnosed with stage 4 pancreatic cancer. Now, normally, the prognosis for this is not very encouraging, but I’m going to fight this, and I’m going to keep working. And with the love and support of my family and friends and with the help of your prayers also, I plan to beat the low survival rate statistics for this disease. Truth told, I have to! Because under the terms of my contract, I have to host ‘Jeopardy!’ for three more years! So help me. Keep the faith and we’ll win. We’ll get it done. Thank you.”