The best thing to do is to call NBC sales department,tell them you'll never watch their stupid news shows again and will campaign heartily with all your friends to convince anybody you know,including local advertisers on the local news shows that their programming is offensive and anti american. Local sales department I think are way more sensitive to sucharguments.
Does GE own NBC? If they do, I'll never buy another appliance of theirs.
Remember General Electric owns NBC. If you want to make them understand that you disagree with this reporting boycott their products period. They are the parent company of NBC.