Glitching in Context

I didn't really follow the glitching concept, so I have done some of my own visual research to grasp a better understanding:

This is a humourous video version of what is known as data moshing:
http://www.court13.com/Chairlift-EvidentUtensil.mov

This looks like a glitch from some spray paint on a wall:

TV 'data moshing':

I like how the blocks of RGB have interfered with this one:

From jk-keller Flickr: