US game show creator Merv Griffin is being treated in hospital for a recurrence of prostate cancer.
Griffin began his career as a singer
Griffin, 82, is being treated at the Cedars-Sinai Medical Center in Los Angeles, said Marcia Newberger, a spokeswoman for Mr Griffin's company.
"I'd rather play Jeopardy than live it. I was ready for a vacation. However, this wasn't the destination I had in mind," Mr Griffin said in a statement.
The cancer was discovered during a routine examination a few weeks ago.
Mr Griffin's son Tony said his father's sense of humour and optimistic outlook remained intact.
"He's getting great care and his medical team want to monitor his progress in a controlled setting," he said.
Griffin began his career as a singer but went on to become a chat show host with The Merv Griffin Show in the 1960s before turning his hand to game shows.
As well as Jeopardy, Mr Griffin also invented and produced Wheel of Fortune.