Last week, longtime Jeopardy! host Alex Trebek revealed that he had been diagnosed with stage 4 pancreatic cancer. Despite the diagnosis, CNN reports that he's already returned to production of Jeopardy! a week after telling the world about his illness.

"We are taping today, and Alex is here and behind his lectern as scheduled," a spokeswoman for Jeopardy! told CNN. Trebek shared his diagnosis in a video, telling his fans that he was intending to get back to work as soon as possible. It sounds as though he's sticking to his promise.

"Just like 50,000 other people in the United States each year, this week I was diagnosed with stage 4 pancreatic cancer," the 78-year-old said in a video sharing the unfortunate news with his fans. "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."

Back in late 2017, Trebek took a leave from Jeopardy! to remove a subdural hematoma, and returned to the show the following month. Trebek's contract for Jeopardy! was extended through to 2022 last fall. "Keep faith and we'll win," Trebek told his fans. "We'll get it done. Thank you."