Because the Internet has rendered useless everything but vehicles, guns and dentists (and don't think somebody isn't working on those three right now), entertainment television show Extra has seen its ratings drop precipitously recently. Rather than take that as a sign they should pack it up and get the hell out of town the way we'd like them to, the show's producers are instead "shaking things up" by firing their current hosts, Mark McGrath and Dayna Devon, and hiring busty former actor Mario Lopez to replace them. Sugar Ray reunion show in 5, 4, 3…