No matter what generation you are from we all have memories of times when significant world news and events unfolded in front of us as we watched glued to the television. Nielsen took a survey to find out what Americans think are the top 20 most powerful moments in television history, here they are.

Whether it was the assassination of J.F.K in 1963, the O.J. Simpson verdict in 1995, or September 11th 2001 that is your most vivid memory, we can all agree that television played a huge part in how we received the news.

Here is your top 20 list:

1. September 11th tragedy - 2001

2. Hurricane Katrina - 2005

3. O.J. Simpson verdict - 1995

4. The Challenger space shuttle disaster - 1986

5. Death of Osama bin Laden - 2011

6. O.J. Simpson white Bronco chase - 1994

7. Earthquake in Japan - 2011

8. Columbine High School shooting - 1999

9. BP oil spill - 2010

10. Princess Diana's funeral - 1997

11. Death of Whitney Houston - 2012

12. Capture and execution of Saddam Hussein - 2006

13. Barack Obama's acceptance speech - 2008

14. The Royal Wedding - 2011

15. Assassination of John F. Kennedy - 1963

16. Oklahoma City bombing - 1995

17. Bush/Gore election results - 2000

18. L.A. riots - 1992

19. Casey Anthony verdict - 2011

20. Funeral of John F. Kennedy - 1963

Which one do you most remember?