Whose “15 minutes of fame” do you think needs to be over, right about…NOW? That was Karen’s question this week: Weekend Assignment # 341: Overexposed Some things (or people) explode into the culture, are really big for a while and then overstay their welcome. Who or what are you really tired of seeing, hearing or reading about these days? Extra Credit: What discarded bit of pop culture do you remember fondly? I couldn’t limit myself …