He was diagnosed with stage 4 pancreatic cancer.

By Christopher Luu
Updated Mar 06, 2019 @ 9:00 pm

In a heartfelt video posted to YouTube, Jeopardy! host Alex Trebek told the world that he was diagnosed with stage 4 pancreatic cancer. In the clip, he promised fans and viewers that he'd keep working as much as he could, and that he planned to beat the disease despite its low survival rates.

"I'm gonna fight this. I'm gonna keep working, and with the love and support of my family and friends and with the help of your prayers also," Trebek, 78, said in the video. He went on to add, "I plan to beat the low survival rates statistics of this disease. Truth told, I have to. Because under the terms of my contract I have to host Jeopardy! three more years!"

Alex Trebek 150th Anniversary Of Canada's Confederation
Credit: Emma McIntyre/Getty Images

After the announcement, Twitter users came forward with an outpouring of support. With nary a negative comment in sight, fans from all over banded together to wish Trebek the best and offer words of encouragement as he faces treatment.

Famed Jeopardy! champ Ken Jennings and fellow game show host Pat Sajak were among the first to offer up their kind words. Bachelor host Chris Harrison, who called Trebek an "absolute legend" wasn't far behind.

Support came from all over, from actors to politicians and everyone between. Even the usually brash Dane Cook chimed in.

Vulture reports that Trebek renewed his contract through the 2020-21 season. Watch Trebek's announcement, below.