Unfortunately I don't remember the date and time of every report I hear, and even though the the corresponding websites cover a lot of the out put they don't cover everything. That and I dont have time to trawl the net looking for specific stories. Having said that, I don't think it's that hard to see the focus of the media on the negative aspects of the war.
Whoever owns the networks, I listen to the content of News, TV, online, radio, etc. I'm judging by output, not looking at owners and then assuming that everything must follow suit.
I find it hard to believe that the casualty focused reporting comes down to 'the reporters were overwhelmed' or 'the military wont let them see any good stuff'. I think the fact remains that most of the mass media unfairly represent the 'bad news' and neglect the other things going on.