One of the biggest challenges on the path to becoming a game show host was Ken Jennings' archrival shocks

Ken Jennings is celebrating his milestone 50th birthday. Here Is a look back at his journey from record-setting "Jeopardy!" contestant to the host of the popular game show.

Ken Jennings had Jeopardy! Masters viewers in complete disbelief after he dropped the popular term when reading a question from the 'internet slang' category during Wednesday's gameplay.