Jeopardy! celebrated its 9,000th episode with the Friday, March 22 installment. And every single one of them for the past 40 ...

"Tonight's broadcast of Jeopardy! will conclude with a celebration of our 9000th episode, each and every one of which has been announced by the legendary Johnny Gilbert! Be sure to tune in," it read.

Following is a transcript of the video. Johnny Gilbert: This is "Jeopardy." And now, here is the host of "Jeopardy," Alex Trebek. Alex Trebek: Right on, Jacques. OK, John, do your thing.

Ken Jennings hosts "Celebrity Jeopardy!" on ABC. Christopher Willard/Disney "My Mount Rushmore would be Alex Trebek, obviously," he said. "The announcer Johnny Gilbert; he's a legend, he's in his 90s.

Jeopardy!' star Ken Jennings told a sweet story on 'GMA' about how his son Dylan reacted to seeing him compete on the quiz ...

"The announcer Johnny Gilbert; he's a legend ... Elsewhere in his "GMA" interview, Jennings revealed his dream "Celebrity Jeopardy!" contestant: "Mean Girls" writer and "30 Rock" creator Tina ...