What are TV's 20 most memorable moments? Los Angeles Times
The stunning news coverage of the Sept. 11 terrorist attacks tops the list of the most enduring TV moments in history for Americans.
Also in the top 5: coverage of Hurricane Katrina, the not-guilty verdict in the O.J. Simpson murder case, the 1986 space shuttle Challenger disaster and last year's killing of Osama bin Laden.
Space Shuttle Challenger explosion.