The game show 'Jeopardy!' was thrown into chaos when Ken Jennings changed players' scores

Halfway through the instalment, the 50-year-old host stopped dead in his tracks to tell contestants Kathy Davis, Anna Paone, and Isaac Hirsch that the judges had U-turned on multiple answers.

The host addressed his controversial ruling from the Wednesday, July 3 episode, where he didn't accept a contestant's answer for including an extra 's.'