Subsciption means no advertising??? since when? (Score 1)

I remember back in the early 80's when cable television debuted. The premise was, pay a subscription, bypass the networks and get advertising free entertainment... all of which lasted about 1 year. My magazines have advertising, my newspaper (I don't have) has advertising, and my cable TV has advertising. Why would ANYONE think an advertising revenue source would be ignored by a company who's sole purpose is to make money for it's stockholders.