Oz in Jeopardy!

Only two days after the video I posted yesterday, in the March 15, 2017 game, the Jeopardy! round ended with this $600 clue in the category Thick as a Brick:

Grant, the defending champion, rang in first and correctly responded, "What is the Yellow Brick Road?" He already had a huge lead at that point, and he widened it so much in the Double Jeopardy! round that it was a foregone conclusion that he would win, even if he'd gotten this one wrong.