At 49 seconds into the video you see sign
https://www.youtube.com/watch?v=wyV1Jn6IasA&app=desktop
Man Yells ‘CNN Is Fake News!’ At Anderson Cooper On Live TV
https://www.youtube.com/watch?v=rDJcfs0LDvw
A random person walked into the frame during a live broadcast on the streets of New York on CNN Tuesday, yelling “CNN is fake news!”
http://dailycaller.com/2017/10/31/man-yells-cnn-is-fake-news-at-anderson-cooper-on-live-tv-video/