Public ownership of broadcasting is good for the citizen/consumer, as it is free once your license fee or taxes have been paid. With the erosion of advertising revenues streams, private broadcasting companies are seeking to make popular programming (such as sports events, concerts or films) subscription based, a trend which risks excluding poorer audiences and threatens social cohesion. Nor is it in the interest of current private broadcasters to see their public rivals privatized and forced to accept advertising, as the overall increase in advertising space would drive down the amount broadcasters could charge advertisers for a spot, reducing their revenues and profits.