Have you ever experienced the buffer problem when you stream video online? You watch 10 seconds, and then you have to wait another 20 seconds to watch a few seconds more of the video. Not the best experience.
A few years ago the Norwegian comedians Bård Tufte Johansen, Harald Eia and Atle Antonsen made a very good sketch about the subject buffering.
The video is well worth a look. Norwegian audio with English subtitles.