(CNN) -- Alex Trebek is back at work taping the new season of "Jeopardy!," five months after being diagnosed with stage 4 pancreatic cancer.
The game show posted a video Thursday on Twitter showing the 79-year-old host back on set and promising "a good year" ahead. He actually started work on July 22, his birthday.
A spokeswoman for the show confirmed that production of season 36 is now underway.
The new episodes are slated to begin airing on local TV stations on September 9.
"Let me tell you, it's going to be a good year," Trebek said in the video.
Trebek initially announced his cancer diagnosis in a video message in March.
"I'm going to fight this," he said at the time. "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."
He continued to tape episodes for season 35 -- featuring James Holzhauer's remarkable winning streak -- while undergoing treatment in the spring.
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At the time, he quipped that "I have to" beat the disease "because under the terms of my contract, I have to host 'Jeopardy!' for three more years."
The American Cancer Society estimates 3% of patients with stage 4 pancreatic cancer are alive 5 years after being diagnosed.
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