Most Powerful TV Event
The Sept. 11th tragedy was the most powerful event in television history, according to a new study released Wednesday by Sony Electronics and Nielsen.
According to Nielsen's survey of 1,077 American adults, 9/11 was the most "universally impactful" televised moment of the last 50 years, followed by Hurricane Katrina in 2005, the O.J. Simpson verdict in 1995, the Challenger space shuttle disaster in 1986 and the death of Osama bin Laden last May.
Here are the top 20 events, according to the survey: