Sometimes, the subject of art can seem unapproachable and elitist and so deter people from developing an interest in the matter. DocuWatch is a site which gathers documentaries on various subjects such as history, science and, of course, art, ranging from Classical Greek to contemporary works and artists. Not to say that reading books or visiting museums is obsolete.
http://art.docuwat.ch/videos/?channel_id=0&skip=0&subpage=channel