Alex Trebek Reveals He Has Cancer

Longtime and legendary host of the game show "Jeopardy!", Alex Trebek revealed on Wednesday that he has Stage 4 pancreatic cancer.

Trebek (pictured), who's 78 years old, has hosted Jeopardy! since its reincarnation in 1984.  He made the announcement to avoid any speculation or any inaccurate reports.

Alex was born in Canada, and had hosted game shows like "Concentration" during his long TV career.  He was given a Lifetime Achievement Award at the Daytime Emmy Awards in 2011.  He also has a star on the Hollywood Walk of Fame.

He has three years remaining on his current contract to host Jeopardy!.