i still can't, but will point you to this article (in english) which sums things up and includes a great map of media ownership.
the law in force from the time of the dictatorship until now explicitly prohibited non-profits, universities and community organizations from receiving broadcasting licenses. if you think that sounds impossible to justify, i wish i had the time to translate all of the unbelievable BULLSHIT being spouted by - go figure - almost all the media.
the end of your favourite media monopoly = the end of freedom
help save the media monopoly!!
if i could collect, translate and analyze some aspect of this enormous pile of bullshit, i might have myself a decent phd project.
but that takes me away from my strategic hope that i will do a phd in something somehow related to community health. or does it? media literacy and community health are surely connected, but would it be too big a leap to actually be helpful in a concrete community kind of way? hmmm.