to answer both of your questions. Disney, being the corperate giant that it is, has a way of letting people go when they are at top salary, and hiring a fresh out of college kid that will work for HALF the salary. I know...9 years ago i was the kid! anyway, i saw that it was starting to happen. Giant warning signs. so, rather then let the big mouse dump on me, i left on good terms.
Radio disney does play disney music but only between 12-4pm when the older kids are in school, and the wee ones are in the car. they stop for a month in the summer.