Yeah, the thing is that this episode was on people's TVs, which is much higher quality than stuff you'd find on the internet--much less YouTube.

I can't watch that video right now but I know what it is.

Ever since then, several anime (especially those aimed at kids) have warnings saying things like "Don't sit too close to the TV and always watch in a well-lit room." Some videogames have that as well.

CNN article on the incident
http://www.cnn.com/WORLD/9712/17/japan.cartoon/