Not only did our friends at WTVJ-TV (Channel 6) abandon South Florida's first television studio -- conveniently located across from the federal courthouse in downtown Miami -- to better bring us gripping developments from Plantation City Hall, and not only did they leave a physical and metaphorical black hole downtown, they also desecrated the structural shell they left behind. On their last day in Miami, staffers pulled out markers and paint and graffittied their historic studio's walls. There's symbolism here, none of it particularly appreciated.