I don't watch music videos. I diss public music channels, because they play only what's popular (okay occasionally they play something good, but that's a big minority percent of the videos played), and I'm not interested in that.
Also I think that music videos are mostly crap, and not needed to point out what the song wants to say.

However, I once saw Metallica's "One" music video, and thought it was quite good, since it represented quite well what the song is about, and also what the band is about.