Cable television may not have been conceived of as television without commercial interruption, but it was heavily advertised as being ad free and for a time it

Cable television may not have been conceived of as television without commercial interruption, but it was heavily advertised as being ad free and for a time it really was. I remember the ad creep. It started with channels adverting themselves or shows/movies that would air or replay later on their channel, then came ads for shows airing on other channels, then came the commercials for cars and dish soap.