I know what you mean. I'm sick of it too. It's not disrespecting him like some of these people say. Our family members that pass away don't get publicized all over the news for weeks. He was just another human being like you and I. The only King is the man upstairs who created us all equally.
I don't think there's anyway you can block those things. I'm with you though. It's all just enough already! I hate seeing him on the front of EVERY magazine, and somewhere on almost every site I visit!