First of all, I would like to compare two ways of broadcasting information, namely TV and books. In my opinion, books are much more useful than Tv is and I believe there are several reasons to sustain this. One argument is that Tv addresses the large public and ussually transmits information that catches the eye of the audience, with themes such as violence, erotism, politics and humuour. Another argument would be that we usually don't know what we are going to watch when we turn on the Tv. On the contrary, we usually read a book that has been recommended to us. Thus, there are more chances to find interesting things in a book that was first read by a trustful friend than they are when we watck Tv.
Let's not pass to film and theatre. I believe these are very effective beacause you can read a review first and decide if it meets your interest. Even more, many films and plays are inspired by real life stories and one can draw a lesson from them. A film or a play is normally very attractive means of media and consequently are easier to be kept in mind and have a stronger impact on us, comparing to comics or radio.
My own experience makes me consider the books as the most effective means of media because I have always learnt many useful things from them. They are very instructively, mainly because they comprise the writer's thought and life experience and are usually written over a large period of time.
As a conclusion, I think we should be more selective when receiving information from the media, as not all its means offer what we are looking for.