Study Ranks TV's Most Impactful Moments of the Last 50 Years

A new study counts down the most impactful moments in TV over the past 50 years. INSIDE EDITION has the details.

They are the images that will stay with us forever—the major news events of our time, unfolding on our TV screens.

Now, a new study has ranked the most impactful TV moments of the last 50 years. Here's the top five:

At 5, the death of Osama bin Laden, just last year. His death brought closure to a terrible chapter in our history.

Number 4 is the Challenger space shuttle disaster in 1986. The nation watched in horror as the shuttle exploded just 73 seconds after take-off. All seven crew members on board perished.

At 3, the O.J. Simpson verdict. After a nine-month trial, Simpson was found not guilty of murdering his ex-wife Nicole Brown Simpson and her friend Ron Goldman.

Number 2 is Hurricane Katrina, which left the people of New Orleans stranded on rooftops, begging to be rescued.

And the number 1 most impactful TV moment of the last 50 years?

The attack on America, on September 11, 2001.

The images of that fateful day will forever be in our memories.

According to the survey, the Top 20 are as follows:

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)