Why are music videos Postmodern?

In televsion, there are two main types of broadcasting. these two types are, information, (i.e documentaries and the News) and Entertainment ( i.e Soaps, Dramas and comedies). Music videos are not directly either of these. they are are usually a 3 or 4 minute clip of either performace based, concept based, or narritive based, products which run on music channels made especially to play these videos. Music videos in this sense are revolutionary, because they intertwine two types of broadcasting (entertainment and advertising) , to benefit the music artist or product. So, they could be concieved as postmodern because of the fact that they advertise, and promote their music to sell. we, as focused or ambient viewers, don't tend to realise, but in reality what we are doing, is watching music videos and becoming attracted to the songs themself subconsciously, resulting in purchasing the song or even multiple songs from the same artist. Of course the better and more asthetically pleasing the video is, the more open to repeatibiltiy it is, leading to additional viewing of the video, and more likeabiltity. so ulitimately Music videos are postmodern because they advertise artists music.