Since 1996, the network has been a go-to music destination for preteens and helped jump-start the careers of future superstars. Disney said it was ending it to focus on streaming and TV.Since 1996, the network has been a go-to music destination for preteens and helped jump-start the careers of future superstars. Disney said it was ending it to focus on streaming and TV.Read MoreRadio, Pop and Rock Music, Disney Channel, Radio Disney, Walt Disney Company, Marsh, Gary