Surprised there was no thread on this, happened 25 years ago today.
I was also surprised to learn that most people did not see this live on TV, even though they believe they did. Only people that did were watching via satellite. Kids in school that had the NASA sat feed and personal sat feeds. If you were watching broadcast, they cut away when it happened and you saw a taped version.
I was in school and we got to watch the NASA feed.
http://www.youtube.com/watch?v=j4JOjcDFtBE