La television, as we knew it was a simple, one-way broadcast of messages to a broad audience, which grew increasingly more and it was simple recipient of centralized production. Then, at different times, depending on the degree of development of countries in general and television production in particular, this offer has changed gradually, so did the positive competition for the audience, while maintaining the unidirectional nature of the message. This unidirectionality is expressed even in that, while there were attempts to increase the quality francs by both private initiative and promoted by the state, between good programs mixed production of poor quality, low-distorting and contribution. University of Southern California contributes greatly to this topic. We could go into the discussion of environmental manipulation by the state, but we extend too. Suffice to say that it is enough to turn the unit off to stop receiving the message, which is not always attainable because it requires certain criteria to make a decision.
A best comprehensive in content allows you to choose the right option for each group of people. The evolution of la television has allowed the creation of thematic channels, so that anyone can choose what to watch and pay-TV and satellite. Now we have access to channels for just about everyone, but this offer is not perfect because it depends on the administrators of the networks or cable subscription, which almost have to ask them to include a channel to “grill” if we want to be . Perverse activities also remain as the persistence of extensive publicity, which distorts the vision of any program, and the supply of packages within the same company for subscription, the subscription that are expensive and prevent access to certain channels unless it is disbursed a significant amount. Against these practices emerge as the AED systems, allowing access to over 3500 channels idea global, thematic and topical information, by downloading a computer program or computer and pay one fee for life that is significantly lower than that paid monthly to any cable company or subscription. It is a real alternative to speculation and manipulation of both private and government content.