My mother (a classical pianist) was hoping that would be the case, too. The first thing we saw when the cable box switched to that channel was Billy Idol's "White Wedding". Mom walked off, muttering something about getting her money back.
When I first heard about MTV I thought that they would also do some classical music and opera. Boy, was I naive.
Our neighborhood fell under a group offer when cable came to our area. We looked at the list of channels offered and I said “MTV? Hey, 24 hours of music and music videos!” My sisters gave me “that look.” A few months later they were glued to the station.