Marketing and promotion of music has evolved significantly since the 1960s due to advances in technology. In the 1960s, television allowed artists to promote their music through performances on TV. In the 1970s, portable recording equipment enabled higher production value music videos. In the 1980s and 90s, MTV helped promote artists and music videos became commercial products themselves through sales of videos and DVDs. By the 2000s, digital technologies and platforms like YouTube made music videos more accessible and important as a form of artistic expression and promotion, with the overall purpose continuing to be selling music and related products.