I remember seeing as a kid both 9/11 and Space Shuttle Columbia disaster, the thing is, that I remember 9/11 more vividly despite being almost 2 years older.
It was a Monday or Tuesday, I just didn't wanted to go to school so my parents call me sick, I was glued to TV I watched the second plane live, thinking it was a replay or something.
The Columbia one I remember it being a weekend and It being the last Shuttle mission or something, and not understanding what happened, it just disintegrated, I remember several people also sent in home recordings of it.
3 years later I got Internet finally at home, I had to rely on cybercafés for the entire middleschool.