Trebek revealed that producers gave him the opportunity to cancel taping when he wasn't feeling well, but the long-time host declined and insisted to keep going since they were already there.
“This got really bad," Trebek admitted to CBS Sunday Morning host Jane Pauley in a preview of the interview, which is set to air on Sunday. "I was on the floor writhing in pain. It went from a 3 to an 11. And I just couldn’t believe. I didn’t know what was happening."
"And it happened three or four times a day while we were taping," he explained. "So that was a little — little rough on me."
Still, Trebek — who has been the host of "Jeopardy!" since 1984 — wanted to push through, despite one instance where he "barely" made it to his dressing room and ultimately "cried in pain" when he got there.
"I taped the show and then I made it to the dressing room on one occasion, just barely, before I writhed in pain and cried in pain," Trebek recalled. "And I had 15 minutes before the next show. So, I got myself together and spasms of that kind usually last about 10 to 15 minutes. So, all right, here we go again: 'Anybody got any pain pills?' And, I don't like taking pain pills. But I got through it."