Try to Watch This Without Laughing or Grinning

Try to Watch This Without Laughing or Grinning is one of the series on the REACT channel. It premiered on February 5th 2015 and ran until August 18th 2021. It features the reactors from Kids React, Teens React, Elders React, Adults React, and YouTubers React. They are shown a series of videos and they have to not laugh or smile. If they don't laugh or smile they win the challenge.

Reactors
Note: Stats up to date until Try to Watch This Without Laughing or Grinning #53 (REACT).

Challenges without a winner: 3

Episodes:
Note: Laugh Challenge featuring YouTubers #1-4 are episodes of YouTubers React so do not appear below.