Look in this forum for the VERY long WBBM thread. Near the end there's a number of post from WBBMTOM, an engineer at WBBM. If you've tried everything you can to get an outside antenna to work, e-mail him and he said he'd try to get some assitance to get it going for you. Alternative is to look into Comcast (or whoever your local is) and see if they're doing HD yet and get WBBM-DT that way.