Alex Trebek has just been diagnosed with stage 4 pancreatic cancer, but he will attempt to finish out this season of "Jeopardy!" ... TMZ has learned.
Sources connected to Trebek tell us, the TV icon was just informed of the diagnosis. He recorded a video message announcing the news.
We're told Alex's intention is to finish out the current season of "Jeopardy." In fact, he says he's vowing to keep working and was bravely upbeat, saying he plans to beat cancer. Sources connected to the legendary host tell us he will immediately begin chemo.