On one hand, we wish we had a screen cap of Brian Mastre anchoring today's 4 p.m. news on Channel 6. On the other hand, it's probably just as well that we don't.Mastre appeared wearing a blue blazer over what may be the most hideous shirt-tie combination we've ever seen. Now, we're not talking garden-variety ugly; we're talking about the sort of unsightliness normally only associated with old