After months of battling pancreatic cancer, Alex Trebek is hinting that his long tenure as host of "Jeopardy!" may be nearing an end.
Trebek told CTV he has begun to get sores inside his mouth from the chemotherapy, which makes it difficult to enunciate. He sometimes hears himself slurring his words on the quiz show, he said.
"I will keep doing it (the show) as long as my skills do not diminish, and they have started to diminish," he told CTV's Lisa LaFlamme in an interview Friday.
As "Jeopardy!" host, Trebek has graced millions of living rooms for 35 years and more than 8,000 episodes -- the most by a presenter of any single TV game show.
In March, he announced that he had been diagnosed with Stage 4 pancreatic cancer, which has a 5-year survival rate of 9%. Last month he revealed he'd be undergoing another round of chemotherapy.
In the CTV interview, Trebek said he regrets being so public with his battle with cancer. His outspokenness about the disease has encouraged many people to lean on him as a source of strength and optimism in their own battles, even while he undergoes his own, he said.
He told LaFlamme he doesn't think he can take on so much of others' pain.
"I don't know if I'm strong enough or intelligent enough to help alleviate some of that despair, so it's tough on me," he said.
But Trebek is facing his diagnosis head on, saying he is not afraid of death.
"The thought of the pancreatic cancer does not frighten me," he told LaFlamme. "I'm 79 years old. So, hey, I've lived a good life, a full life, and I'm nearing the end of that life. I know that."
July 7, 1988
Alex Trebek is photographed in his home on Mullholland Dr. in Los Angeles on July 7, 1988. (AP Photo/Alan Greth)
Alex Trebek poses for a photo in 1988. (AP Photo)
July 2, 1990
Alex Trebek, the host of the television game show "Jeopardy," poses with his wife Jean Currivan, on the stern of the yacht "Jacana" on July 2, 1990 in New York. (AP Photo/Ed Bailey)
March 28, 1996
Game show creator Merv Griffin, left, shares a laugh with "Jeopardy!" host Alex Trebek, second from left, and "Wheel of Fortune" hosts Vanna White and Pat Sajak, right, during a news conference in Atlanta Thursday, March 28, 1996 to announce their Olympic marketing plans. The popular game shows are Olympic sponsors and begining in April will launch major Olympic promotions and offer Olympic-related merchandise to their viewers. (AP Photo/John Bazemore)
Feb. 24, 1998
Alex Trebek, right, and the 38th Pillsbury Quick & Easy Bake-Off winner Ellie Mathews of Seattle, raise their hands in victory Tuesday, Feb. 24, 1998, in Orlando, Fla. Trebek hosted the live television show where Mathews was named the winner of the $1 million grand prize for the best recipe cooking competition. (AP Photo/Ed Bailey)
May 17, 1999
In this May 17, 1999 file photo, Emmy award-winning game show host Alex Trebek celebrates his newly-dedicated star on the Hollywood Walk of Fame in Los Angeles. (AP Photo/Nick Ut, File)
May 26, 1999
Jason Borschow of San Juan, P.R., left, reacts after missing a question during the 1999 National Geography Bee, Wednesday, May 26, 1999 at the National Geographic Society in Washington. Host Alex Trebek is at center and eventual winner David Beihl of Saluda, S.C. is at right. (AP Photo/Ron Edmonds)
Jan. 26, 2000
Quiz show host Alex Trebek, left, talks with boxing promoter Don King at the National Association of Television Program Executives convention in New Orleans, Wednesday, Jan. 26, 2000. (AP Photo/Judi Bottoni)
Oct. 23, 2003
Actor Leslie Nielsen, right, chats with Alex Trebek, host of Jeopardy, Thursday, Oct. 23, 2003, at the Canadian consul general's residence in the Hancock Park section of Los Angeles. The Alliance of Canadian Cinema, Television and Radio Artists (ACTRA) celebrated its 60th anniversary and presented its "Award of Excellence" to Nielsen at the Canadian residence. (AP Photo/Ric Francis)
May 20, 2005
Alex Trebek poses for photographers as he arrives for the 32nd Annual Daytime Emmy Awards in New York, Friday, May 20, 2005. (AP Photo/Tina Fineberg)
April 20, 2006
From left: Alex Trebek, Vanna White, Merv Griffin, Pat Sajak and honorary Mayor of Hollywood Johnny Grant pose for a photo during a ceremony honoring White with a star on the Hollywood Walk of Fame Thursday, April 20, 2006, in Los Angeles.(AP Photo/Nick Ut)
April 28, 2006
In this Friday, April 28, 2006, file photo, Alex Trebek holds the award for outstanding game show host, for his work on "Jeopardy!" backstage at the 33rd Annual Daytime Emmy Awards in Los Angeles. Sony Television spokeswoman Paula Askanas said Sunday, June 24, 2012, that Trebek is in a Los Angeles hospital recovering from a mild heart attack. (AP Photo/Reed Saxon, File)
Oct. 5, 2006
Show host Alex Trebek takes part in a taping of "Celebrity Jeopardy!" to celebrate the 5000th episode of "Jeopardy!" at Radio City Music Hall, Thursday, Oct. 5, 2006, in New York City. "Celebrity Jeopardy!" will showcase 30 stars competing for $1,000,000 dollars for charity. (AP Photo/Paul Hawthorne)
Aug. 17, 2007
Pat Sajak, left, host of TV game show "Wheel of Fortune", and his wife Lesly Brown, talk with "Jeopardy!" host Alex Trebek during funeral services for Merv Griffin at Church of the Good Shepherd in Beverly Hills, Calif., Friday, Aug. 17, 2007. (AP Photo/Kevork Djansezian, Pool)
Oct. 22, 2007
Game show host Alex Trebek and his wife Jean Trebek arrive at the 17th annual Broacasting and Cable Hall of Fame awards dinner at Cipriani's 42nd street, Monday, Oct. 22, 2007 in New York. (AP Photo/Peter Kramer)
June 27, 2010
Alex Trebek is seen on stage at the 37th Annual Daytime Emmy Awards on Sunday, June 27, 2010, in Las Vegas. (AP Photo/Eric Jamison)
June 19, 2011
Television personality Pat Sajak, left, and, television personality Alex Trebek pose together with their awards in the press room at the 38th Annual Daytime Emmy Awards in Las Vegas on Sunday, June 19, 2011. Sajak and Trebek both received Lifetime Achievement Awards. (AP Photo/Dan Steinberg)
May 21, 2012
Honoree Alex Trebek attends the 71st Annual Peabody Awards in New York, Monday, May 21, 2012. (AP Photo/Charles Sykes)
Jan. 8, 2015
Masters of ceremony Alex Trebek, left, and David Pogue host the 66th Annual Technology & Engineering Emmy® Awards, held Thursday, Jan. 8, 2015, at The Bellagio Las Vegas in Las Vegas. (Photo by Isaac Brekken/Invision for the Television Academy/AP Images).
Feb. 15, 2015
Alex Trebek attends the SNL 40th Anniversary Special at Rockefeller Plaza on Sunday, Feb. 15, 2015, in New York. (Photo by Evan Agostini/Invision/AP)
April 24, 2015
In this April 24, 2015 file photo, Alex Trebek, left, and Florence Henderson arrive at the 2015 Daytime Creative Arts Emmy Awards at The Universal Hilton in Universal City, Calif. (Photo by Rich Fury/Invision/AP, File)
April 30, 2017
In this April 30, 2017 file photo, Alex Trebek speaks at the 44th annual Daytime Emmy Awards at the Pasadena Civic Center in Pasadena, Calif. (Photo by Chris Pizzello/Invision/AP, File)
April 9, 2018
Alex Trebek inducted into the NAB Broadcasting Hall of Fame at the NAB Broadcasting Hall of Fame Awards at the Encore Wynn Hotel on Monday, April 9, 2018, in Las Vegas. (Photo by Robb Cohen/Invision/AP)
Oct. 1, 2018
Moderator Alex Trebek, center, speaks during a gubernatorial debate between Democratic Gov. Tom Wolf, right, and Republican Scott Wagner in Hershey, Pa., Monday, Oct. 1, 2018. The debate is hosted by the Pennsylvania Chamber of Business and Industry. (AP Photo/Matt Rourke)