Just repositioned my Winegard GS200A and suddenly I'm getting no signal on WCBS-DT (56). I live in northern Westchester, about 42 miles from Empire State Building transmitter. This is strange because WNYW-DT (44) and its linked UPN counterpart are coming in fairly strong. Is the WCBS transmitter down, or something? When I lived about 10 miles south of here, I always got WCBS strongest.