Dan Harris (left) hosts as the all-time greatest “Jeopardy!” winner and best-selling author Ken Jennings (right) competes on “500 Questions.”
Dan Harris (left) hosts as the all-time greatest “Jeopardy!” winner and best-selling author Ken Jennings (right) competes on “500 Questions.” Adam Taylor ABC
Dan Harris (left) hosts as the all-time greatest “Jeopardy!” winner and best-selling author Ken Jennings (right) competes on “500 Questions.” Adam Taylor ABC

What to Watch on Thursday: Jennings tries to answer ‘500 Questions’

May 26, 2016 06:00 AM